Buttons don't update plugin parameters on FX plugins

[tomekslesicki]

Tested in Ableton and Reaper, but I guess it's most likely happening in other DAWs, too. This is with an FX plugin, I haven't tested with instruments.

When clicking on a UI button that's enabled as a plugin parameter, the button callback is executed properly, but the plugin parameter's value is not updated. This is regardless of meta parameters and radio groups, I tested it with these on and off.

The buttons also don’t respond to being changed from the DAWs plugin parameters. The plugin parameters that are supposed to be changed by buttons' callbacks don't get updated either.

Sliders work fine.

@Christoph-Hart I'm sure you can solve this!

Here's a minimal snippet - it needs to be built first, of course - but it's not anything ultra clever, just a slider and button set as plugin parameters...

HiseSnippet 791.3ocsU0saSCCE1tqYZs.iMId.xkanIT+acqhKnz+fJnaQjwD2M7bbZrZhcThyFUHd21iDuAfcRZSKKqqqRjKp54+Oe746Xi.NlDFxC.vxWL0m.fOWybJS3z0AQYfg8.vc0FgBEj.8DUcl5iBCIV.HbqOnT.KUDD+8620A4hXXRlJ.3RNES9L0iJxzZz9STW2AHKxETuE7tQ6gXNqK2kGIwyVZU.9H7DzXxYHkaEz.eDE5.fuV63Z0wMrNwpVsia0DiZRZYirsqV2pQilm1pZ8VnFm1jT4X.b69VTAOvTfDjPYR6vslZ5vukkTfKogzqcIJgp.SYkSTC55PcsLl0bBA.XQirV0VIspWoMhZQmqOqksWrA8rHVroAKrJHU8I.I3BPpXBj1WyDGP8EYVT34YZCYxaPaj7tYQnj3K.dmVWtzAl3MdnIjAARg4AbPyJUNRW9ygu0NhgETNSmyNiKHmyN3vx+rbox+pr9+Zx1NWapxDvccIA4ZVMNDrp.OfE4cMI3H8aPtQj4NJO9K2S2d85o3jS8BNxYCYTw49jT4AbWKUuR8+6eC.Raax6hBoHT5pH9lX2zahNQBAmAnxj7xkTUEDeHVjr.dnjX5RsHAKkjDU4kjuNrGRfTyGovSBYeRffp5LvdjajLxjokRZ8HgSDb+X764yYpCCbm09D7i4E9twsmlgBZ6aoVBIUUCZIEcHzwNhYR9tQioLCTfjUKGxRH26IGA4t59yzBngFK6mD6E.OLJWQKJCkeObsQYt0OWnKQfKEOQOLAAf6yJk6C3VQtHwxKITqOSMHmxWhYpnerPpX5hqWeBaNprxMGqKD2WyfJvN4iwB4fQEQ3+.FS229Bs911DrHCfE0F7sMc45iT9uviDT13QHQ.UN.ocVjmo7cILQVcFi3FpFTJn3rIxUTxpNfIgYEK7G4WpwpJYXpwpyLB7P3.9U3DRuZi9NwZjXhEOYUR9zqTVOGVtm7Alqv3kS08Br1lFX8MMvFaZfGuoA1bSC7jMMvSe7.Uu++9HA2Kg1..iL5GuUFB6yPxIv3oUveEHoWlM