When swapping mods, I commonly am unable to move when I load into the game. Sometimes a mouse cursor stays on screen and I am unable to perform any character actions. Other times I am able to shoot but not manage inventory or move.
This behavior is common when using and changing mods.
The workaround is to quit and re-enter the game. The mods loaded does not matter - it even occurs without any mods loaded at all (after you've disabled them)
Platform: PC
Load into a Reforger game with mods on. In this case the KUNAR PROVINCE mod family.
Leave game
Add a new mod (STRYKER for example)
Load into a KUNAR PROVINCE scenario.
I've made a ticket on the same problem. It's "Awaiting internal Testing".
I think it would be good if you attached console.log
Just enter some modded server, play for a very short time, leave the server.
Join other sever where you cannot move, exit to the desktop.
Then copy and paste console. log here.