When downloading Medicat and when creating the USB stick and when using this USB stick ...I've had issues running several apps in Mini 10 since the most recent update. R-Drive Image in particular gives me the error "0x8007007e The specified module could not be found" while specifying no module and generating no log to debug with.
I've tried on a freshly formatted USB drive with a brand new copy of Medicat several times with no luck.
... Did you remember to disable all antivirus software, including Windows Defender?
This is extremely important and regularly repeated on this forum.
Antivirus software deletes some files that prevent Medicat from working properly.