I can reproduce it. I started a new Game, Normal, Career. VAB --> Set a Pod and launched --> Eva --> Jeb is stiff with arms stretched to the side and does not move. Focus is still at the pod, with no crew on board. I can manually switch to Jeb with [.
Same happened to an existing Sandbox save-game. Though, I brought there the capsule to orbit --> Eva --> Bill floated as statue away from the capsule, at least he laughed.
Nevertheless, I shut down KSP again, verified the game files again and was told that 2 files could not be verified and need to be reaquired. But there was no information when this will occur (I assumed it would be immediately).
Version Info: KSP 126.96.36.1995, Windows player X64 en-us.
Only the base game, no history or breaking ground expansions. No mods installed.
System: Windows 10 Pro build 17134
System type: x64 based PC