I’m now thinking it’s possibly related to this issue I had a few days ago:
If I don’t use any Halion sounds at all, it seems to be stable. I also have a license for HALion 6 on my eLicenser. Probably unlikely, but could there possibly be a conflict between the HALion Sonic SE that ships and the regular Sonic or HALion 6? Also, probably unrelated, but I just realized the ASIO driver on my standalone versions of these had been changed to “Generic Low Latency ASIO Driver” instead of my “Universal Audio Thunderbolt” driver. Just mentioning anything that might be conflicting in case it matters.