Thanks mate, I did give a scan a go, and interesting about the copying config tricks.
I tred adding the .vst3 path to Ardour 8, and get Presswerks back, however, the Presets have gone blank. I used the Ardour presets, not its own built in ones.
I never was quite sure what “Program 127” and above were, mine just saved after those, so I just got on with it.
So its picking up as a VST2 not VST3 on Ardour 8 … how weird. I got it to load by adding the .vst3 path not the .vst path.
I had to add that .vst3 path with the VST2 path button though, where has the other one gone? Also nothing under LV3 on the Count box. Its like it doesn’t do VST3?
Fedora seem to have had issues with in their ardour8 package. The commit log at Commits - rpms/ardour8 - src.fedoraproject.org mentions a fix for VST3 support. But the package with that fix still seems to be in the testing repo only. If you insist to keep using the Fedora package (instead of the official version from this website) you might want to try the version from the testing repo (ardour8-8.1.0-3 vs ardour8-8.1.0-1 in the main repo) and give feedback to Fedora if it fixes the issue. The last step often helps with getting Fedora RPM package updates out of the door and to regular users machines faster.