Found this bug told me to report it

[vysiondropz]

Logs for MM, KSP.txt and output_log: https://www.dropbox.com/scl/fo/owpe5ltmyer8kn749altj/h?rlkey=ab9iim5a7rhsaau8mvyelpth8&dl=0

I've been trying to get this game to run for 3 days now.

I had to deal with "system.reflection.reflectiontypeloadexception was thrown". Tweakscale doesn't seem to like any b9 things on my setup, is that common? 

What are the needed .DLL files for tweakscale to work correctly?

[Cheesecake]

First: Wrong place to ask. Here is the section for Mod Releases.

Second: B9 is the problem. B9Partswitch is missing in your installation.

 

[James Kerman]

Thread moved from KSP 1 Mod Releases to KSP 1 Mod Discussion.

[Lisias]

4 hours ago, Cheesecake said:

First: Wrong place to ask. Here is the section for Mod Releases.

Second: B9 is the problem. B9Partswitch is missing in your installation.

Bingo!

To tell you the true, this one is a first, I never got a problem like this one before!

 

[LOG 00:21:20.858] PartLoader: Compiling Part 'Squad/Parts/Command/cupola/cupola/cupola'
[ERR 00:21:20.998] Cannot find a PartModule of typename 'ModuleB9PartSwitch'

Something is patching B9PS on everything without checking if B9PS is, indeed, installed!

And so TweakScale panics, because it can't check the available parts because they are using a PartModule that is not present on the rig.

Problem: I didn't found anyone patching B9PS in the cupola by inspecting MMPatch.log . It looks like this part config have it hardcoded somehow - @vysiondropz, did you edited the file Squad/Parts/Command/cupola/cupola.cfg?