A multi-band configuration when restored from SD does not restore RBW. Duplicate by changing the RBW followed by a restore. Oddly, the RBW field in the display shows the incorrect RBW actually being used but when you click on it to bring up the RBW setting the correct/desired value is checked, not the one actually in use.
NOTE: This is only a defect for configurations WITH multi-band AND when saved to SD, not one of the 4 in-memory slots.
If you prefer, I can open an issue in for this in github. Not sure of proper protocol.
Peter