GLM Crashes and no sound after updating to MacOS 26.4

Two things happened simultaneously: I put my 8331 on table stands and updated macOS to 26.4. One of these changes broke everything: no sound from my speakers or 7350 sub outside of GLM 5. If I try to calibrate my setup GLM 5 crashes after the first sweeptone. Reinstalled the app to no avail. What can I do?