Somewhat optimistically I am posting to share difference with a new USB
I was using: SanDisk 32GB 3-Pack Ultra Fit USB 3.1 Flash Drive (3x32GB) - SDCZ430-032G-G46T Black
And am now using: SAMSUNG FIT Plus 128GB - 400 MB/s USB 3.1 Flash Drive (MUF-128AB/AM)
It has been about 15 minutes so far, by now the San Disk would already be very hot (in router or laptop).
The radio still appears to be working, and mounting appears to have happened correctly unlike with the sandisk where it only happened correctly once.
The temperature of the USB is warm, but not hot at the moment.
Will grab temperatures and processes if the 2.4 ghz network goes down.