Hi. I've been using MemTest86 in Grub for years without issue. My USB Key runs WinPE, Memtest86 & EFI Shell. I think I started with v8.4 and it's worked through to 10.0.
With both v10.1 and 10.2 it no longer loads the mt86.cfg file until I move it 1 folder down:
\EFI\MemTest86\mt86.cfg - DOES NOT LOAD
\EFI\mt86.cfg - WORKING. LOG FILES ARE SAVED HERE TOO.

My GRUB.CFG contains:
Code:
menuentry "[MemTest86 10.2 Pro]" --class memtest {
           chainloader /EFI/MemTest86/BOOTX64.efi
           }​
Is this a bug? All the previous versions worked from \EFI\MemTest86\...