Tips & tricks, working results, technical support
Any ideas on fixing this?
don't switch... save a new version and load it instead of switching on the fly (and I don't understand the pratical reason of it). Maybe it's caused by a bug, but those bugs have a very low priority. In the future we'll remove mono-stereo kernel switching because it's adding too much confusion among users. The preset developer will decide what's stereo and what's mono and why. So he will release maybe 2 versions of important presets, addressing them in the right way