I've been coming across an issue with the Raum effect plugin where adding it to a track in the REAPER DAW causes it to crash. I've tried increasing the block size from 512 to 1024, and also running the plug-in as a dedicated process, but both of those options also lead to a crash. It's worth noting that I can only use the AU version of Raum (since I guess REAPER didn't scan the VST and VST3 versions). I've also encountered an issue exactly like this with the Replika and Supercharger effect plug-ins as well.