VST not compatible issue - Ableton Live

Development
1

I’m developing a VST plugin with JUCE, for Windows 10. Although my issue is not directly related to JUCE, I’ve had a hard time coming accross someone else with the same issue so I thought I would ask here.

The plugin in is a VSTi (Synth). When I open Ableton Live it first gets recognised as a VST (effect). When I drag and drop I get the “VST not compatible” message. If I double-click, it just doesn’t do anything, unless I insist on double-clicking (random number of times) and then the plugin is started.

If I turn the VST custom folder off and on, the plugin disappears. If I do it again it reappears as a VSTi, and then it opens normally.

Any ideas? Thank you.

UPDATE: It seems that this happens only on Release builds, and it somehow has to do with a message window handle (HWND), which apparently has an invalid memory address. In Debug builds it runs smoothly. Any help would be appreciated.

2

Can you give us a stack trace?

3

Turned out to be a hard-to-trace bug in my code - which by the way only manifested in Windows and not Mac OS X - nothing relevant to JUCE anyway, but thanks for the interest!

4

Hi Lefteror,
Any chance you could elaborate on what happened?

I’m now running into the same problem!!!

Thanks

5

Hi BLXD,

The issue had to do with a circular buffer being written abnormally, i.e. from two different code snippets. Hope that helps.

Cheers

6

For the sake of closure, this was most likely a race condition but not related to the JUCE code.