Great work on all the fixes, the game is so much better than the 1.00b vanilla Victoria I originally played.
Here are some of the issues I've found. If the format or grammar are a bit odd it's cause I'm copying straight out of notepad, so if clarifications are needed just ask. ? Indicates I'm not sure about something, but it was sufficiently unusual at the time to jot it down. It's also on any event files which still have 1920 deathdates, they may be better off not being changed as some of the events are a bit odd in a post WW I world and usually it won't affect game play (and I haven't bothered to include anything where the only thing I've found are 1920 deathdates. If you do want those just ask)
Some of these issues are very minor, and may not be worth including, while others make a difference. And I'm sure some of them are just me missing the point of something, so don't actually need fixing:
config
unit_names.csv
Replace have with has, division with ship where appropriate to make a huge difference to the professionalism (and take away some of the character) of the game
db
revolt.txt
FRM, ANH, MEI, SAX, HED, HEK, NAS still have pre Hotfix 1 cultures
events
1881.txt
28012 deathdate is before start date
1914.txt
? Many events still using delete_unit despite problem with AUS, GER, High Sea Fleet. Is there a problem?
28556 flag denoting Montenegro as Allies is on wrong option (though it's also never used by other events)
28522 does not have trigger to see if France controls new capital, but 28575 does for Belgium. Means Belgium can't lose if Leopoldville captured and England still going, but France might move capital into enemy hands
28663 should be BELFightson
28564 either shouldn't have AI chance or should have refusal
? 28632, 28633 need political reforms
? 28634 needs civilised
ai_events.txt
? 30166 30167 why are BAY and MEC out of or bracket?
? 1920 deathdates
Argentina.txt
? 16601 needs political reforms (unless it's meant to fail)
Austria.txt
1510 needs political reforms
? 1920 deathdates
China.txt
12519 should gain techs 3001, 3301, 5002, 5201, 5202 as prerequisites to 5302
? 12531 12532 accept options increases prestige, probably should decrease prestige
? 1920 deathdates
flavor_eng.txt
? 36934 needs dragoons
flavor_fra.txt
37206 play the sax can occur before flavor_bel.txt 36704 the invention of the sax
flavor_ham.txt
? Are the research points meant to be there, perhaps as efforts to prevent recurrence or to rebuild? Still a little strange
flavor_ind.txt
49300 province should be 1967
flavor_rus.txt
32501 doubles up with poland.txt 32402 - get rid of flavor_rus.txt version
flavor_swi.txt
31300 date should be 1837
? 31304 Jewish militancy increases after getting citizenship
forcedreforms.txt
? 23111, 23116 need political reforms (and maybe 23114, 23115?)
goldevents.txt
21133 Hotfix 2 fix incorrect. Should have all three province references changed to 2833 Bendigo (one of largest gold sources ever), not 2731 Great Sandy Desert (a big desert)
? 1920 deathdates
India.txt
For all events where 5301 is gained, should gain tech 5002 as prerequisite
? 1920 deathdates
interwar.txt
28745 sets a Georgian flag in a Mongolian event
Japan.txt
For all events where 2002 and/or 5301 is gained, should gain tech 5002 as prerequisite
12608 is untiggerable
? 1920 deathdates
Persia.txt
7800 should gain tech 5002 as prerequisite to 5301
political_events.txt
22009 needs the nine new ship classes
province_owner.txt
Hotfix 2 events to raise life ratings not present
revolution.txt
23101 national value should be liberty
Russia.txt
2500 change second date to deathdate
? 1920 deathdates
Spain.txt
7704 needs same additions as 7700 in Hotfix 5 to keep monarchy
? 1920 deathdates
sweden.txt
? 6604 shouldn't have relation trigger or Denmark.txt 6215 should
? 1920 deathdates
tech
army_inventions.txt
113 to 116, 135 to 140, 159 to 164 unlocked before their prerequisites
army_tech.txt
? 1301 is unusual in affecting irregulars, seems like an undeleted or commented out relic
commerce_inventions.txt
309, 310, 317, 318, 339 to 347, 351, 362 to 364, 374 to 376 unlocked before their prerequisites
1920 deathdates need fixing
365, 366 missing modifier to lumber mill
377 improves account efficiency unlike similar inventions - is this deliberate?
commerce_tech.txt
3006, 3106, 3306 all improve account efficiency unlike preceding techs - is this deliberate?
3406 should be commented as organisational development
culture_inventions.txt
424, 426, 429 to 432, 461, 462 unlocked before their prerequisites
1920 deathdates need fixing
454 needs modifiers for the 9 new ship classes
industry_inventions.txt
500, 517, 518, 521, 523 to 525, 534, 535, 554, 555 unlocked before their prerequisites
industry_tech.txt
5306 should be commented as Limited-Access Roads
5405 unlocked in 1880, but prerequisite 5005 not till 1885
navy_inventions.txt
202, 203, 220, 221, 237 to 239, 256, 257 unlocked before their prerequisites
All deathdates should be changed to 1935, otherwise late bloomers eg Japan miss out. Some inventions even have deathdates earlier than when prerequisites are available
219 should have 212 requirement to prevent slim chance of late game ships having corvette escorts, while still allowing late bloomers to access corvettes
288 should have 216 requirement to prevent slim chance of late game monitors, while still allowing late bloomers to access monitors (unless this slim chance desired)
221 change 215 requirement to 217 to prevent slim chance of late game protected cruisers, while still allowing late bloomers to access protected cruisers
241 to 287, 581 to 588 inclusive are missing the early cruiser for organisation/morale modifiers
? 294 should be triggered by 289, not 298
? 581 to 588 should have 1919 start dates (some specifically mention being after the Great War, all triggered by level 6 tech)
591 either missing early, late cruiser or shouldn't have modern; probably needs some other ships eg carriers (unless effect is already built in - but then why does it affect late BB/CB?)
navy_tech.txt
All techs missing year requirement
? Naval Doctrine techs have redundant requirements
? 2103 change requirement to 2003 from 2001
2202 Man O War build time modifier missing
2206 should be commented as modern, not advanced naval design
Hope a few of these might help