I created a vst, and it works fine on Abelton, but only if I upload the plugin when Abelton is already open.
When I try to open Abelton with that plugin on preset, it crashes.
any idea what is the difference between opening a plugin when Abelton is already open, and when Abelton is on startup?
Have you tried debugging your plug-in? Your IDE will break at that point in the code the error occurs.
XCode: cmd + <, Info -> Run (Debug) -> Info -> Executable (Ableton) and then click the Run button.
Visual Studio: something like “attach process”, not sure as I am currently on mac