Tuning bug?

While setting up a few panadapters to watch for FT5ZM pileups (got them on 160 this morning) a ran into a tuning problem.  I have one slice open on the top PA then two PAs on different bands with no slices.  Top PA is on 20M with a slice that is off to the side on 15M.  When I double click that slice the PA changes to 15M as it should and the slice is centered.  But when I want to change the slice A freq and change the band back to 20M the PA changes but the slice stays on 15M and jumps to the side.  Closing the slice and opening a new Slice A restored normal operation.  But when changing bands the slice should have changed as well instead of staying on 15M.

Greg