Hello Knut Jackowski, I tried to reproduce the issue with a Stretch i386 VM.
"Unfortunately" the scide gui opened without a problem. So maybe you could deliver some more information about the crash by following this guide [1]. [1] https://wiki.debian.org/HowToGetABacktrace This mail is written in the assumption that BunsenLabs does not recompile every package for their distribution? Kind regards, Bernhard