So...it's being erratic again. Turn on system from shutdown. Run DeoVR...mouse not recognized.
but I found something interesting.
Run Whirligig - mouse recognized. Stop Whirligig, then run DeoVR - mouse recognized for varying amounts of time. Could be a minute or two, or longer. I'll be clicking in the DeoVR menu, then all of a sudden it stops working.
The longer Whirligig is used for before stopping, it seems the longer it will work in DeoVR. Maybe there is some minimum runtime, don't know yet.
So...DeoVR has problems finding the mouse and maintaining the connection.