I have rather specific situation here (Win 7 x64) which drives me crazy !!!
I’ve programmed my own VST host program. It works with all plugins as expected, only with Slate FG-X & VCC there is a misbehavior. Plugins load ok, but with the first processReplacing call, VU meters stop working, preset system on FG-X stop working, on/off buttons are dead etc. Again, ALL other plugins i’ve tried (many) work, including Slate’s VTM. Just can’t find the reason no matter what I do. Majority of hosts (cubendo etc.) on my machine work as expected, so I am sure i am doing something wrong in my code.
I’ve noticed that Audacity suffers from the same problem (Audacity 2.0.5). If for example FG-X is selected as effect on track and preview is started/stopped, all described symptoms are there. When preview is in progress, VU meters are dead, on/off buttons don’t work etc. BEFORE actual preview buttons work, check it out. It looks Audacity approach to the VST plugins in the same way as my host, triggering this particular problem.
Please, can you check this behavior on your machine if possible.
If it doesn’t work, please rename Audacity folder to “Audacity_SAM” and try again. Does it work now?
Thanks in advance for your help!