So, love the ProjectM addon but unfortunately it's crashing when it changes a preset.
I though it was due to the one-thread bug but that seems to be solved.
Running on the latest LibreElec (9.2.0) and latest ProjectM (2.3.4.1).
I'll try to search the debug log for some usefull information.
There was a thread on the Kodi forum so at least I'm not the only one :-)