Thanks *Nimrod, I am glad you enjoy it!

it's amazing as it is, and thank you for the good work

Thank you Nimrod, for bringing that to my attention. I have updated the mod accordingly and, if I can, I will see about sprucing the mod up a bit. If you or anyone has any suggestions please feel free to let me know :)

Dude, pls, any update?

true dat, well I will get started on working on making a seperate mod for ya! :)

Maybe make that a separate mod? I did some research on what each mod does, that may conflict, and I could not find anything concrete.

The "normal" user may not be using 56, Expert AI 4.0, and CROG. But I bet you there are a few that do use 56 and Expert AI 4.0, or would like to, but didn't try when they seen there was a conflict. If that mod allows them to work, and just so happens to also work well with yours in the mix to...

I like long winded explainations, others may not.

Bit of a long-winded explanation, my apologies lol you probably didn't crave to know the exact details. Again I cannot promise anything. However, based off of what I have read thus far combined with my limited modding experience it could be possible to make these mods work together yet. :)
However there could be more that could be compromised by tweaking the .mod file that I cannot foresee. Nonetheless, please let me know if you would like me to proceed.

OK so I checked with Expert AI 4.0 and the developer himself posted that the mod was not compatible with any overhaul mods such as, "Kaiserreich", "Black ICE", "Great War", "Road To 56", "Vanilla+, etc" and that "using any of these mods will break the game."
That being said, not to get your hopes up but it might, MIGHT be possible for me to engineer a work around. Fundamentally what I would be doing would simply be to add on Expert AI 4.0 as a "dependency" within the .mod file itself. Theoretically, this could give CROG56 permission to override whatever bug is causing Expert AI 4.0, CROG56, and The Road to 56 from not working together by being higher on the mod loading order.

I did what I should have done to begin with, I tested each mod, to find the conflict.

The conflict is 56, with your mod above, and Expert AI 4.0 which their page says doesn't work with 56 itself. As such, when using all three, it appears to break everything but Expert AI 4.0, even though they (56 + Expert AI) worked together before.

I bet there was "issues" with 56 + Expert AI, but I didn't notice anything wrong before.

Regardless, I don't believe it is your mods fault. I am looking at a replacement for Expert AI itself (if needed, 56 may have something built in).

I am not using any of those specifically, just the 56 itself, which has those 3 included within.

https://steamcommunity.com/workshop/filedetails/?id=703940878
These mods are the three "Expanded" mods that I had enabled when the crashes happened

The thing is, the game doesn't crash, it just looks like 56 gets disabled. What do you mean by "Expanded"?

OK the first time I tested this mod's compatibility it also crashed. I found out that I had the three "Expanded" add-on mods also enabled which caused the game to crash every time I tried to open the research tab. Do you have them enabled too? Apparently they are integrated into the mod and aren't necessary. Once I disabled them everything worked like it was supposed to :)

To update you, this breaks the road to 56. Namely my first indication was the national focus tree of China is back to default game, as is the research.

Further checking shows that Italy and Soviet Union are also broken, going to their default focus trees, and no additional research that 56 provides.

If no one reports such issues, I can give my mod list, and try to narrow down a conflict.