I've been having a persistent issue for years now with all GRM plugins that use the 2D joystick as part of their interface. The problem is that the joystick often simply doesn't remember the last setting and jumps to a random position once I hit play. This happens when there isn't any automation on the track and the track is set to read (in Pro Tools). If, for example, I set the upper and lower frequency bound in Reson with the joystick and then hit play, about 70% of the time the joystick will jump to another, random position. This also often happens right when I open a session -- the parameters are already different from what they were when I saved the session. Very frustrating to say the least -- I have to resort to writing down all settings in the comment field of the track and printing the track once I feel I dialed in the right settings.
I'm on PT HD 12.5.1 on OS X Mavericks, but I've experienced this behavior on multiple workstations with different OS and PT versions.
Anybody else experiencing this?