Attempting to copy some data from an external drive to an internal drive fails on two specific large ISO files (26GB and 35GB). Rest of the data copied without issue. Using File Explorer did the job just fine.
Is it reproducible or a one-off?
Always with (just) that particular file, or more random than that?
If you can reproduce it, please make a Process Monitor log of what happens when the error appears and send it to us:
At least two files and I tried at least 3 times, showed impossible copying progress progress for about a second (went past 3GB) and then showed the failure.
I've since backed up what I needed to and wiped the original drive. I can try to replicate it somewhere else but I don't have the exact setup available anymore.