The mods I was using were kaiserreich, this mod, Stategic View Adjustment(MP/A variant), State transfer Tool, and Universal Colored Puppets.
Also, the version of this mod was second latest one, so sorry if these bugs were already fixed.

1. When I played as Constitutional Monarchist and Appointing a President event popped up and selected somebody, the president became the country leader and the original tsar goes away. The president also became monarch in Duma decision. The unchooseable focus "Rationalize the Laws" also became chooseable (This is probably because country leader changed to president). The event happened in 3 June, 1940.
2. I couldn't release some countries. When I clicked the decition, nothing appears. (I later noticed that this issue can be solved by save and reload, so this might not be serious issue).
3. When I finished "project Zheltorossiya" and choose "Implement the project" the newly released Manchuria only had northen states in Manchuria. According to desicion button description, It seems that it was supposed to have all chinese states.
4. When I join Entente by selecting "Join the Entente" desicion, all my puppets also joined it but became free.
5. When I annex Arabia and release it as puppet, Iraq controls arabia. Same thing happens when Ottoman beat Cairo pact and she releases Arabia.
6. "The Fate of Manchuria" event's middle button says that "Integrate Xinjiang", it seems that this should be "Integrate Manchuria"

Suggestion:
1. As I can choose Authorian Democrat in 1942 election as Constitutional Monarchist and take the last Eurasian focus, it would be fun if its name will be "Eurasian Empire", instead of "Eurasian Union", to make it look more monarchist.
2. It would be fun if I could core entire Finland, Poland and Galicia-Lodomeria, and also could claim Greater Poland and Memel, specifically, Oberschlesien, Posen, Wesepreußen, Masurien, and Gumbinnen. This would satisfy who loves greater Poland like me.
3. It would be fun if I could release Korea as Kingdom when I play as Monarchist (both Absolute and Constitutional) Russia. This would satisfy many monarchists.
4. It would be fun if I could keep Kiril Island (Chishima Retto in Japanese) when releasing Japan.
5. It would be fun if I could create something like "Russian Central Afrika" like Deutsch-MittelAfrika. This might be unrealistic, but would be cool.

for some reason i get an event in june 1940 to replace my country leader with a new president, even tho im a monarchy

uuh absolute monarchy. the transition overlays all trees but the naval one and expansion one over the political one.

I found some pretty funny bugs that break the game a lot. The first in importance is a bug related to the "Start the Spring Session" solution. It appears immediately after the election of a new thought, I can try this solution an infinite number of times and get 50 pp (-50 + 100) for it. The next bug is less game-breaking, but very interfering - the overlapping of several focuses on each other. How to do it? I lived through the decision that Kerensky survived, went through the riots in Petrograd, and after that I went to seek support from Romanov and Kornilov. The day before the decision to abdicate, I wrote to them, and after Kerensky resigned, but his tricks were, as it were, under the focus of Russia without a ruler

I used this, Kaiserreich, and Player Peace Conferences. I played Russia, and had no events or anything after the initial election to choose Socialists or Social Liberals......... I waited until 1938, and no events or anything to change government... Very confused rn

There are some problems with Panslavic Congress:

I can't create Yugoslavia. When I activate this dicision, at first event "Illyria accepts" happens, then "Austria agreed'... but it's an event about Galicia-Lodomeria splitting!

In code: after activating the dicision, there's 'Formation of Yugoslavia" (rusfor.1322 event) in Illyria (I've released it and other slavic countries like Bosnia and Slovenia before). Then, if Illyria accepts (rusfor.1304.b) Austria has a "Status of Galicia-Lodomeria" event (rusfor.1320). I think it's wrong!

"Start the spring session" decision doesnt appear to do anything, and gives 50pp. This can be done an unlimited amount of times.

blyat Russians want Russification!!1!

This mod might cause color changer mods (colorizer, paint it) to not work.

Originally posted by Not Corey Carpenter:

This mod might cause color changer mods (colorizer, paint it) to not work.

colored puppets is broken too, but Universal Colored Puppets actually works

The Denikin tree doesnt appear for me is there a bug or not ??

finland decisions and 'demand basarabia' decison doesnt work

1) Zemstva system does not work - civil factory's spend but nothing happens.
2) When i conquering the china i can't release it's as a puppet - i chose the decision but nothing happens.

It is possible to choose both NEP and Syndicalistic in democratic path, if pause and click on decisions at the same time

idk whether this is a bug or w/e but:
In the socialist path, the different options you select during the Congress don't actually affect which options you can choose in the focus tree. So I understand certain options give more influence to certain factions but I think (might be mistaken) the intention was to make it work like e.g. UoB or CoF where the choices you make during the Congress, in addition to choosing which factions gain influence, also determines which path you can choose in the focus tree, like for example with the Commune you can have the Anarchistes win the election but still go with a Sorelian military policy or w/e. Maybe that wasn't the intention but in that case why give us those options if you can just choose which faction wins in one singular event.