When I make a project, save it and re-open it... my soft synth go out of tune.
This has happened with Spire and Cherry Audio: Mercury 4, at least.
I think it did this even on frozen tracks, if I recall. It definitely does this on tracks that aren't frozen.
I made a project yesterday. Was fine. Today I opened it and it seems at least the two synth I mentioned were out of tune.
Using Samplitude Music Studio build 16. Windows 10.
I've most likely used VST3 versions of the synths. Thanks.