You were right about the update.
Right now it’s installing a version 1803 update as well as a 1809 feature update.
I haven’t got another gaming mouse around, but next time I’m at the store I’ll buy another in case this one breaks really bad and I can’t wow at all.
I’ll post back with results. The problem started yesterday and it happened only once today where for a minute I could not control the camera very well. So it might take some time.