A certain knob automatically resets itself. How do I fix that?

This is usually due to an unwanted MIDI assignment (or MidiLearn). This means the knob (or control) in question was accidentally linked to a MIDI encoder, and is now constantly reset to the MIDI encoder’s value upon transport change or reset.

For newer plug-in versions with dedicated Configuration section (look for a cogwheel icon in the upper right corner of the plug-in interface), click on the cogwheel, select the MIDI Table page and look for unwanted MIDI assignments, delete if necessary.

For old plug-in versions without the dedicated Configuration section, you can remove unwanted MidiLearn-ed parameters by right-clicking the knob (or control) and selecting MidiUnLearn.

Tip: You can remove all MidiLearn-ed controls at once by deleting the file which saves all MIDI assignments.
On Mac OS X, you can find this file here: ~/Library/Application Support/u-he/com.u-he.PLUGINNAME.midiassign.txt.
On Windows, the location of this file depends on which install path you chose for the Data directory. If you are not sure, use Windows’ file browser (Explorer) and its search function to look for PLUGINNAME.data, like Diva.data or Zebra2.data. In there you will find a subfolder named Support which contains the file you need to delete: com.u-he.PLUGINNAME.midiassign.txt.

For more info on our recommended install paths, see this FAQ article.