hdansin So this issue recurred when I updated last week. I believe it has more to do with the plugin format than a system configuration. I installed the vst3 plugins and the UI works on them, while the LV2 ones do not. I believe this is because the UI configuration in the LV2 format is a little more complex. At any rate, the fix is to install the lsp-plugins from the website in the VST3 format. CLAP would probably work too.
