Issues when using drop down menus on certain PA plugins

[apohl79]

Discussed in #1219

^{Originally posted by th3funnychurch3s May 12, 2023}
E.g. Amek compressor and Brainworx bx_limiter True Peak disappear momentarily when I click on the resize menu (top left). It reappears after a second or two, with no changes applied. Some drop down menus on the bx True Peak plugin (e.g. the loudness target) causes the same issue.

Server.zip
Plugin.zip

[Mythix-99]

Also found a few plugins with this issue. They seem to be related to the Always on Top setting with some of them. I believe that was the case with FabFilter plugins, anyway.