Updated the Kemper Firmware today. Created another Performance and when copy/pasting Rigs from slots of other performances into the new performance, several times the name of the slot being pasted overwrote the name of a slot already in existence when pasting the new slot into a blank slot.
In other words, copy/pasted a rig from Performance A into slot 1 of Performance B. When I copy/pasted a rig from Performance C into slot 2 of Performance B, the name of slot 1 was renamed to the same as the 'new' slot 2. Only the name was overwritten as far as I could tell.