Hi @trurl , thanks for the response. I saw on another thread that I should run a memtest, so I went ahead and did that - it found loads of errors. I've since replaced the sticks, ran another memtest and now I'm not getting any errors. The mover is successfully moving all files across, however, I'm seeing BTRFS critical errors in my log - 'kernel: BTRFS critical (device nvme0n1p1): unable to find chunk map for logical 2906649526272 length 25776128' I assume this is probably related to the dodgy memory I had installed previously. Just wondering what you suggest I do from here? Thanks
tower-diagnostics-20251018-1257.zip