Steps to reproduce
Linux KSP 1.0.5 64 bit
Attach any two crewable KPBS parts together, add some crew and launch.
Transfer a crew member from one module into another (crew portraits disappear).
Press "C" to enter IVA game freezes.

Workaround - switch to space centre and then return to vessel OR install RPM

Suspect lines 45 and 50 of SurfaceStructuresCategory.cs may be cause or contribution where "GameData" is "Gamedata" in paths.

Player.log.zip

Closed. Plugin code for IVA and KSP have changed a lot since this bug has been reported. There are no signs of this be still being present in the current version.
Will still have an eye out for any furher appearences.

Saved a little bit after Player.log but not by much.
KSP.log.zip

Thanks, i'll look into it.

Does the NRE in the IVAs still happen for you in 1.1? I have tried it with 1.0.5 on another linux machine with 64bit and was not able to reproduce the error.