VST3 Program parameter is not updated when the loaded program changed and updateHostDisplay() is called

Audio Plugins
1

Since June 23 (commit 51fe471461f75fcfd72f7d0749382cbc149eef37) updateHostDisplay() doesn’t properly update the VST3 program parameter. There are two cases where this parameter must be updated:

  1. The number of available programs changed
  2. The current program changed

Currently 1. is handled correctly but 2. is not handled at all.
Here’s a pull request fixing this: https://github.com/juce-framework/JUCE/pull/816

2

Thanks for reporting and for the PR. We’ve added a fix for this on the develop branch here:

3

Thanks! I closed the PR for you.