What I remember I did before it happens is:
-Recording something on 2 patterns with track A7 which has multislice set on the sample
-To record the same thing with the 12 bit version of the sample on another pattern: assign and resample on track A5
-Transpose -5.37 then Loop/Slice Multi Mode
→graphic bug and it seems that it doesn’t equally divide the slice. The previous sample setting might be remembered.
By the way it still happens after reboot and after everything is reload.