I’ve just installed the Synthmaster 2.9.6 demo and I get the crash when I try to open the plugin editor. I noticed that the demo version actually doesn’t open the editor window immediately, but first displays a “When you try our demo version…” message box. This delayed creation of the plugin editor window is the reason the crash occurs. I would guess that the full version does not have this problem.
Edit: I’ve now added a double-check in the Podium code so that the Synthmaster demo doesn’t crash. Fix will be available from Podium 3.3.0 beta4 and onwards.