Hi nkf-

Ah, I see. I will have to look into the issue a bit more to be sure, but my guess is this: We added a "Mix Lock" parameter to UltraReverb between versions 2.0.11 and 2.2.2, and it's possible that Cubase stores presets by indexing parameters – which means adding parameters would throw it off. My suggestion would be to save your presets using the internal preset system, if at all possible. When I get the chance, I'll investigate this further.

Best,

Tom