Paratroopers not moving despite requirements being met?

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TheMeInTeam

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Whoops. I see you were replying to ManInMe

Replying to what now?! :eek:o_O

Just to be clear, his game and attempted airdrop is separate from the one I described in the original post as well as my most recent post.

Perhaps, but there's a good chance we're encountering the same issue I quoted from the wiki.
 

Had a dad

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also check your unit composition, if you attach art / any combat support to a unit it can only be as a support, not in one of the 5 x 5 positions.
 

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Perhaps, but there's a good chance we're encountering the same issue I quoted from the wiki.
possibly, but usually I find that there are other things missed that cause what seems to be a bug, not to be a bug when it comes to paradrops
 

jgalt87

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Replying to what now?! :eek:o_O



Perhaps, but there's a good chance we're encountering the same issue I quoted from the wiki.

Sorry about that! I've changed the name!

To encountering the issue, this is absolutely possible. Based on your suggestion, I tried to fix it following the instructions laid out, but I got the sense I was doing it incorrectly. I'll try again when I'm able to.

also check your unit composition, if you attach art / any combat support to a unit it can only be as a support, not in one of the 5 x 5 positions.
It's a good thought; the first time I ever tried to use paratroopers (about a year+ ago) I fumbled with this exact issue. In this case, all the brigades are paratroopers, plus 5 support companies. I should have added a screenshot of the unit composition. I'm not in front of my computer, but I will do so when I next open up the game.
 

jgalt87

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upload a save and I'll see if I can spot any issues. a tad rusty as I've been horribly busy, but maybe someone else can deduce what is going on @Alex_brunius knows the game inside and out
Will do! Thank you for offering to take a look! I don't have much experience with paratroopers, because I haven't figured out how to use them advantageously on a regular basis and I'd prefer to spend the special forces space on marine/alpine units. As such, it's VERY possible I'm overlooking something.
 

TheMeInTeam

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possibly, but usually I find that there are other things missed that cause what seems to be a bug, not to be a bug when it comes to paradrops

I only put paratroopers in those divisions though. I was being generous in allowing for support; Greece making planes like that doesn't have room for anything else but guns. You can even see that the divisions were comprised of exactly 3 battalions of paratroopers and nothing else in 1st screenshot, putting me at initial cap of 24 total battalions.

My screenshots demonstrate hard evidence of a bug. At minimum, it can not be reasonably concluded that the information displayed by the UI works as intended (stating nothing wrong, showing the arrows as if the paradrop will launch, never launching it).

Likely something mechanically is wrong too (wiki seems to have identified such a bug outright).

When you actually lack air superiority the game says so for example. In many cases the game simply won't tell you why you can't do it, or based on its stated requirements implies you can but then doesn't execute.
 

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My screenshots demonstrate hard evidence of a bug.
possibly. I mean there are bugs in the game, my statement is, in all my testing, usually when it came to paratroopers, it was I that was missing something and not a bug.
 

Zarine

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Please see the screenshots in the original post. They show 100% air superiority in each of the provinces along the path.

I did check the screen, you have superiority in 3 sea but it's likely that you don't have it on land.
Either because the land area is different (specific one) or not associated to the sea zone you have superiority on (like the large sea on the left)
 

pvt.conners

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Air supply unassigns transports from paradrops. Not sure why your transports aren't dropping when you don't have air supply enabled.

Keep in mind that paradrops done in this manner will drop sequentially if done with a single transport squadron from a single airfield. If you want them to drop simultaneously use multiple squadrons from multiple airfields.
 

LiberiusX

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Air supply unassigns transports from paradrops. Not sure why your transports aren't dropping when you don't have air supply enabled.

Keep in mind that paradrops done in this manner will drop sequentially if done with a single transport squadron from a single airfield. If you want them to drop simultaneously use multiple squadrons from multiple airfields.

Yeh I had similar issues to OP, in the same geographic area actually. My problem was that I wasn’t turning air supply off. I thought it was a bug, it was just me being stupid
 

TheMeInTeam

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possibly. I mean there are bugs in the game, my statement is, in all my testing, usually when it came to paratroopers, it was I that was missing something and not a bug.

Is it reasonable to conclude that intended? If the game doesn't tell you why you can't do something, IE there's no reasonable way to discern the rules, is the software actually accomplishing its intended functionality?

That said, I'm suspecting something mechanical here since center of "Balkans" and in OP's case the center of the islands he was targeting are out of the transport plane's range, even though target provinces aren't.

Keep in mind that paradrops done in this manner will drop sequentially if done with a single transport squadron from a single airfield. If you want them to drop simultaneously use multiple squadrons from multiple airfields.

True, and I was expecting 4 separate drops spaced over a few days, not one drop all at once (as you say, this is for some reason impossible regardless of paratrooper or transport plane count). In other situations otherwise identical conditions will drop the troops.

I definitely tried with both air supply on and off, among several other random things like sending 1 division at a time and such. They wouldn't go.
 

jgalt87

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I did check the screen, you have superiority in 3 sea but it's likely that you don't have it on land.
Either because the land area is different (specific one) or not associated to the sea zone you have superiority on (like the large sea on the left)
Ah, I thought you were saying that the screenshots showed naval superiority. That's a good thought. However, I'll note that prior to and after taking the screenshots I did have air superiority over that fourth sea zone (Far Eastern Indian Ocean), and it still wouldn't launch. I'm not so sure it matters though, because I believe the target province is associated with the Java Sea (clicking on the province when in the airforce map mode brings up Java Sea). Also, the province does not touch the Far Eastern Indian Ocean (though other provinces in the region do). It is situated between the Coral Sea, Java Sea, and the Arafura Sea. There is no separate air zone for the land.

Regardless, very good thought--that's just the sort of thing I think I may have missed and am hoping someone points out to me. Thank you!

upload a save and I'll see if I can spot any issues. a tad rusty as I've been horribly busy, but maybe someone else can deduce what is going on @Alex_brunius knows the game inside and out
Here you go. I don't have a save that's at the exact same time as the screenshot, but I do have one a couple days later which I've attached and could also post one from about a month prior if requested. The save should open up focused on the airborne landing order given (arrows moving) but nothing moving. The attack is from Australia to Portuguese Timor.

I really appreciate you taking a look!
 

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bitmode

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True, and I was expecting 4 separate drops spaced over a few days, not one drop all at once (as you say, this is for some reason impossible regardless of paratrooper or transport plane count).
Just like with other air missions the number of transport planes effectively used for the drop gets scaled down by mission efficiency. This includes air base overcrowding, low supply and bad weather, but also the zone reassignment penalty introduced in 1.5. So if you don't assign the transport planes to any region, you'll get a massive efficiency hit.
For example in the '39 start, when I let the German paratrooper division drop from the airbase close to Berlin into Warsaw, only 48 out of 132 transport planes can get effectively used, sometimes as low as 18. When assigning the wing to a strategic area first (doesn't need to be the target area), this goes up to 112 effective planes.
Other than that, multiple divisions should be able to drop simultaneously if enough effective planes are available.

As far as I can tell, when a paradrop order is executing and air superiority checks succeed, it collects all deployed air wings with transport capabilities and without assigned missions at the source air base and does the following for each assigned unit:
  • check that the unit is (still) parachutable
  • check that the unit is at the source air base
  • check that the unit is allowed to move into the target province (i.e. military access or war, not water/demilitarized/impassable etc.)
  • select a transport wing that still has space and targets the units destination (or didn't have a drop destination yet)
  • add the unit to this wings "cargo"
  • if the air wing didn't have a drop destination yet, pause its previous region assignment, set its mission to paradrop
Once the air wing has the mission (which is invisible in the interface), it will happily drop off its cargo and reset its mission/region assignment once all cargo is dropped.
 

bitmode

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Here you go. I don't have a save that's at the exact same time as the screenshot, but I do have one a couple days later which I've attached and could also post one from about a month prior if requested. The save should open up focused on the airborne landing order given (arrows moving) but nothing moving. The attack is from Australia to Portuguese Timor.

I really appreciate you taking a look!
I took a look as well. The conditions described above are all fulfilled but the hidden paradrop air mission gets immediately deleted because your transport wing has no coverage in the targeted strategic region (Sunda Islands), i.e. every single province is out of range. Not sure why you were allowed to select this province then; probably some rounding problem.

Edit: The selectable range of destinations is centered on the starting province but the coverage range check uses the center of the source state, i.e. the ring you see when selecting the transport wing.
 
Last edited:

SeekTruthFromFx

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I took a look as well. The conditions described above are all fulfilled but the hidden paradrop air mission gets immediately deleted because your transport wing has no coverage in the targeted strategic region (Sunda Islands), i.e. every single province is out of range. Not sure why you were allowed to select this province then; probably some rounding problem.

Edit: The selectable range of destinations is centered on the starting province but the coverage range check uses the center of the source state, i.e. the ring you see when selecting the transport wing.

Those are two really helpful posts, @bitmode. Someone should add the implications to the wiki (possibly me when I've got more time).
 

bitmode

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There's also a second bug: the displayed range circle still clearly contains the target province but due to a botched optimization the coverage is considered 0% when it is actually 5% (2 out of 40 provinces).
The code that cleans up out-of-range missions also makes a failed attempt to handle paradrop missions specifically, so the devs must have been aware that this is a possible scenario. The air wing ends up with a target drop destination but without a mission, which permanently prevents the para drop because the last step in the bullet point list above gets blocked.
 

jgalt87

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I took a look as well. The conditions described above are all fulfilled but the hidden paradrop air mission gets immediately deleted because your transport wing has no coverage in the targeted strategic region (Sunda Islands), i.e. every single province is out of range. Not sure why you were allowed to select this province then; probably some rounding problem.

Edit: The selectable range of destinations is centered on the starting province but the coverage range check uses the center of the source state, i.e. the ring you see when selecting the transport wing.

There's also a second bug: the displayed range circle still clearly contains the target province but due to a botched optimization the coverage is considered 0% when it is actually 5% (2 out of 40 provinces).
The code that cleans up out-of-range missions also makes a failed attempt to handle paradrop missions specifically, so the devs must have been aware that this is a possible scenario. The air wing ends up with a target drop destination but without a mission, which permanently prevents the para drop because the last step in the bullet point list above gets blocked.

Bitmode, thank you so, so much!!! This is fascinating and will be extremely helpful going forward. I had no idea and I bet most folks (even experienced players like myself) are equally ignorant of this. I'll be sure an edit to the original post noting your solve.

Does this makes paradrops on the far end of an extremely long province effectively infeasible?