Discovered while running training, so I think it's a recent bug.
When making a pixel map (2) from a magic sheet, the channel numbers didn't transfer across. It actually took the channels from pixel map 1 which was completely separate. The shape was correct but as it was a circular pixel map there was no easy way to renumber all the channels, so we ended up merging in a complete version from the master showfile, but obviously that won't work in real use cases!
Running 3.3.5 on IonXes and Gio@5s