Unit icons in the production tab do not show up and the starting techs are not green(i.e. they show as not researched) but I'm allowed to research the succeding techs regardless. I am using alot of mods but yours is the only one with any tech changes. Even after turing off all the other mods used except for yours, this still occurs.
Any help much appreciated as I like your mod but its hard to play without icons to be able to efficently check my production queues.

Can you post a screen shot? Thanks!

I ask as I've been trying to replicate the bug - but so far no luck.

If you really want to go the 110%, add -debug to your steam launch and then copy-paste all the errors you see *other* than overwrites. That, more than anything, would let me know what's up. :)

[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "fighter_equipment" in file "common/units/equipment/single_engine_airframe.txt" line: 3. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "cv_fighter_equipment" in file "common/units/equipment/single_engine_airframe.txt" line: 42. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "jet_fighter_equipment" in file "common/units/equipment/single_engine_airframe.txt" line: 236. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "jet_fighter_equipment_1" in file "common/units/equipment/single_engine_airframe.txt" line: 352. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "jet_fighter_equipment_2" in file "common/units/equipment/single_engine_airframe.txt" line: 365. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "cv_fighter_equipment_0" in file "common/units/equipment/single_engine_airframe.txt" line: 385. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "cv_fighter_equipment_1" in file "common/units/equipment/single_engine_airframe.txt" line: 399. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "cv_fighter_equipment_2" in file "common/units/equipment/single_engine_airframe.txt" line: 419. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "cv_fighter_equipment_3" in file "common/units/equipment/single_engine_airframe.txt" line: 439. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_equipment" in file "common/units/equipment/tank_modern.txt" line: 4. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_equipment_1" in file "common/units/equipment/tank_modern.txt" line: 47. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_artillery_equipment" in file "common/units/equipment/tank_modern.txt" line: 53. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_artillery_equipment_1" in file "common/units/equipment/tank_modern.txt" line: 98. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_destroyer_equipment" in file "common/units/equipment/tank_modern.txt" line: 104. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_destroyer_equipment_1" in file "common/units/equipment/tank_modern.txt" line: 149. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_aa_equipment" in file "common/units/equipment/tank_modern.txt" line: 155. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "modern_tank_aa_equipment_1" in file "common/units/equipment/tank_modern.txt" line: 199. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_equipment" in file "common/units/equipment/tank_super_heavy.txt" line: 4. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_equipment_1" in file "common/units/equipment/tank_super_heavy.txt" line: 46. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_artillery_equipment" in file "common/units/equipment/tank_super_heavy.txt" line: 52. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_artillery_equipment_1" in file "common/units/equipment/tank_super_heavy.txt" line: 95. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_destroyer_equipment" in file "common/units/equipment/tank_super_heavy.txt" line: 102. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_destroyer_equipment_1" in file "common/units/equipment/tank_super_heavy.txt" line: 145. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_aa_equipment" in file "common/units/equipment/tank_super_heavy.txt" line: 152. Overriding old.
[22:52:18][equipment.cpp:841]: Warning: Found duplicate equipment "super_heavy_tank_aa_equipment_1" in file "common/units/equipment/tank_super_heavy.txt" line: 195. Overriding old.

And now it works as intended. Really weird...sorry to have bothered you man.

It's okay. I'm glad it's working for you! :)

I encountered the exact same bug, I determined that it was due to a mod conflict between this one and the "AI Research and Division Tweaks" mod, which does alter tech trees. Specifically it alters the AI research weight, but it still causes issues with this one.

This mod is currently 100% incompatible with any other technology mod.

Like, you wouldn't notice it if all your mod does is change non-unit technologies - but if it does then you run into super weird and awful errors about art going missing or shifting randomly.

Oh, definitely, and I expected that. I just didn't realize that the AI Research mod altered the same files until I went through the mods and compared them. I picked this one. :)

I know there are some cool mods out there that add to the tech tree in ways that would be nicely complimentary to what I'm doing - like the Industry mod. I wish there was some way to get around it. :(

I do not use any other technology mod.

The new tanks in the tank tech tree, Modern 2 and 3, and the Superheavy 2, have as an icon a Coin with green outline and an artillery drawing in the middle, also, nothing shows as being researched other than the name (I assume it is a placeholder, but if it isn't...)

Also, after researching the Superheavy tank 2, nothing shows up on my production, I cannot make it, in fact, the regular Superheavy also vanished from the list, and only appears if I click to show outdated equipment.

Edit: After clicking to show outdated, and then removing the tick, the tank now appears, only it has no icon, not sure why that happened.

Please put -debug in your launcher, and then copy-paste the results here. Thanks!

It solved itself (kinda, I edited the last post), is it still necessary that I do this for the icons part or are those placeholders?

Edit: After closing the screen and opening it up again, it now has an icon when I'm looking at available production options, but no icon when researching, although it is a completely new Icon, it is a tank tho, definitely no more than a light one tho (only the dark silhouete)

The art should be in, so most likely there is an error I need to fix, or there is another mod that's conflicting some way. Seeing the debug log (minus the "duplicate equipment") should really help.

Ok, will do,

Mods being used:
Clearer Unit Selection Mod
Coloured Buttons
EXPANDED TECHNOLOGY TIMELINE
Full AI Overhaul
HOI 4 UI Fixed Overhaul
HOI 4 UI Overhaul
Persia Rising

Debug:

[15:30:22][lexer.cpp:71]: File 'events/Persia.txt' should be in utf8-bom encoding (will try to use it anyways)

Edit: After loading the game this appeared

[15:32:17][theatre.cpp:3798]: Theaters or fronts has been fixed, as some spots was incorrect as in the savegame.
[15:32:17][gamestate.cpp:4292]: 1943.3.13.9 : Inconsistency in owner/controller for #3873 ( in Valencia ) (Owner = SPR ) (Controller = POL ) Controller not allowed to occupy owner.


That is the only thing other than duplicate equipments, but since the Persia mod changes nothing on the tech tree I highly doubt that it is conflicting. (It changes some provinces, city placement and focus)