My VST3 plugin has 16 units, one for each of the 16 MIDI channels. The number of patches can differ from unit to unit. Cubase gets this number through a call to getProgramListInfo where the number is set using programCount in the ProgramListInfo structure. This works perfectly when the plugin is first instantiated, but the user may later change the list for any of the MIDI channels. In this case my plugin calls - at least - RestartComponent(kParamValuesChanged). This causes Cubase to call the getProgramListInfo function again and the new programCount numbers are sent back. However, in Inspector the length of the displayed list doesn’t seem to change, causing lots of issues. How can I force Cubase to update the length in the Inspector? I have also tried to call notifyUnitSelection and notifyProgramListChange, but nothing seems to work. I have Cubase Elements 13, but this seems to be an issue also in Cubase 12.