Thanks, the bug fix mod seems to have fixed the issue. Next time I'll post more info initially. And of course for my test build I forgot to put the booster and parachute into different stages..... Good to be back to playing KSP!
I just installed KSP on by Ubuntu based laptop. When I start the game, it reproducibly crashes to desktop whenever I click on the parachute during vehicle assembly. Are there any settings I can tweak to prevent this? Thanks!