Hi Markus, as you know the latest/latter versions of vst3 sdk allow the daws that support it (Cubendo, KK and Maschine) to automatically subsitute the vst3 version for the vst2 version in old projects.
I came across this just now.
And because I am now on a Apple Silicon, I can't open the vst2 version that these were created on.
[edit: please do not link to external images for security and the EU 'cookie' laws]
rsp