Looks like at least some of the observed hangs and crashes are due to some GIF images in the THEME: drawer.

If you have the tools to do so, at least replace the images in THEME/window/statusbar by PNG versions.
ScalosSplashLogo and ScalosAboutLogo cause problems, too. Unfortunately, there is a bug in 40.32 that incorrectly displays PNG images with transparent background.

I'm currently investigating the startup crashes, but have no conclusive results yet.
However, it seems like inserting a "wait" just before "LoadWB" in the startup-sequence solves the problem.

We are currently preparing improved installation and default preferences for Scalos, and hope to able to release an update in the near future.