VST plugins use the audioMasterAutomate callback to notify the host of parameter changes from within the plugin, and the host uses the setParameter function to update the plugin with parameter changes from the host. Neither of these should be called in response to the other as the other party already has the necessary information. The issue arises because both Transient and LMMS both do this, so it could be considered a bug in the plugin as much as one in LMMS, but we can and probably ought to fix the issue on our end at least.
This PR removes the setParameter call from the audioMasterAutomate handler.
This is an one-liner and should bring no side effects as the description says. So I'd say go. @DomClark FYI, you can merge your pull request yourself when you feel comfortable. Squash and Merge looks like the best merge method for this PR.
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.