Late to the party, but I took your hint and stopped running the Live View option of the Canon Utility (I haven't uninstalled it, but that's next), letting Helicon Remote do it all. That worked on Win11. Off to try my Win10 VM...

Looks like that fixed it...

I also updated the firmware because I ...

Is there a command line interface for Helicon Remote (I'm aware of the one for Focus)...

I'm looking to automate a number of pieces of the shooting workflow, such as output folder names, etc.