(I am Russian, excuse me for my English :))

The problem is that when entering the game, the new version of the mod is no longer displayed. The module detail is there, but the setup menu is not. Tried both release and beta. Does not help. The old one was displayed well and without bugs.

Help me please.

You need to share your KSP.log so we can see what is wrong with your install. You can find it in the directory where the game is installed.

Вам нужно поделиться своим KSP.log, чтобы мы могли увидеть, что не так с вашей установкой. Вы можете найти его в каталоге, в котором установлена ​​игра.

KSP.log

If that's not it, then I'm sorry. I'm a little stupid in the morning :)

[ERR 15:39:23.865] MechJeb caught a ReflectionTypeLoadException. Those DLL are not built for this KSP version:
[ERR 15:39:23.865] Kopernicus.Components 1.0.0.0 GameData\Kopernicus\Plugins\Kopernicus.Components.dll

update the rest of your KSP mods for the correct KSP version