Cubase deleting inserts after VSTBridge-crash

So I’ve been having this issue for a while now that the VST-Bridge crashes and I have to restart Cubase LE AI 8 in order to continue my work. most of the time afterwards, even when I don’t save the project, Cubase either resets all adjustments to some vst-plugins (mostly LePou, but also some by Cubase itself) or removes all PlugIns completely.
I have no Idea how to treat this problem.

Thanks for your help in advance,