I've downloaded Maurizio's free presets from https://www.maurizio70guitarist.com/kemper-amp/kem…nacomp-presets/
In the Dyna Comp example the four items in the "Stomp (Single STANDARD)" folder load into the Local Library fine. The five presets in the "StompS (SET-PreStack)" all error with a corrupt file message.
My strongest suspicion is this problem is user error.
Any advice on what I should try?