Why aren't my troops resupplying from the sea?

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PanzerMan7

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The rail connection to Odessa is cut but I have a nice port there along with another in Sevastopol. Why aren't my troops resupplying via naval convoy? I have plenty of convoys.

Oddessa port.png
 

GrandVezir

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There is a flaw in the current sea supply system: it will select one preferred port and try to supply everything from there. For the USSR, the preferred port is Leningrad by default, and I'm guessing that route is blocked.
 
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Fulmen

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There is a flaw in the current sea supply system: it will select one preferred port and try to supply everything from there. For the USSR, the preferred port is Leningrad by default, and I'm guessing that route is blocked.

What happens if he were to manually set the Baltic Sea to never allow convoys to traverse through it? Will the preferred port change?
 

SeekTruthFromFx

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What happens if he were to manually set the Baltic Sea to never allow convoys to traverse through it? Will the preferred port change?
No. The convoys are just cut. It has been bug reported and the devs have said they are working on fixing this.
 

Rancor26

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What happens if he were to manually set the Baltic Sea to never allow convoys to traverse through it? Will the preferred port change?
It would probably just say no supply connection found.

When i was playing as the Netherlands i wasn't getting any supply to east indies because i had English channel blocked manually even though they could have gone around Britain. If i set it to avoid or allow the supply convoys would start going through channel.

This only affected supply convoys, resource convoys were working as intended.
 
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GrandVezir

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What happens if he were to manually set the Baltic Sea to never allow convoys to traverse through it? Will the preferred port change?
AFAIK, the port does not change if you block sea zones.

Based on the bug reports, the port is chosen first, then sea zones are checked. If sea supply from the chosen port is blocked (either by the player or by game mechanics like the Danish Belts), then the troops are unsupplied, full stop. Even over a route so short as Sevastopol-Odessa.

Some players have reported success in fixing similar issues by upgrading rail connections so that a new port becomes preferred. In OP's case, they could theoretically upgrade the rail link from Moscow to Sevastopol until it became better than the Leningrad link. Though I suspect that would take too long to save Odessa in OP's case.
 
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Casko

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What happens if he were to manually set the Baltic Sea to never allow convoys to traverse through it? Will the preferred port change?

No Supply Route Found. Thus you'd starve.

This is EXTRA "FUN" when you invade Japan as a Soviets, as all your supply comes from Leningrad, rather than Vladivostok. And this means your supply most likely goes full course Tsushima trip across Africa before reaching anywhere near Far east.
 

HugsAndSnuggles

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This is EXTRA "FUN" when you invade Japan as a Soviets, as all your supply comes from Leningrad, rather than Vladivostok. And this means your supply most likely goes full course Tsushima trip across Africa before reaching anywhere near Far east.
But that's how Soviets always supplied Far East pre-NSB, unless you bothered to build a ton of infra.