So I'm happy to report I installed the Appimage, and I have gotten Carla plugs back!.
However, my VeSTige plugs GUI windows aren't rendering properly now, and I know I'm not using the default theme but it happens with the default theme as well.

Installing the appimage version alongside my repo version shouldn't do any harm right? The last change cost me BOTH Carla and VeSTige. Just getting VeSTige back consumed a lot of my time, so I dread even tampering with these packages.

Does anyone have a solid plan to troubleshoot this issue? Afraid not, i do however noticed that you say you are using KXstudio LMMS. That is no longer recommended. Now we recommend the App-Image from our own page: AppImage on the Linux-tab! https://github.com/LMMS/lmms/releases/download/v1.2.0-rc8/...

Okay, so I had similar issue to this before on Arch using AUR repos, and also on AVLinux which is Debian based. Been using LMMS from KXstudio repos with Carla-Git on Ubuntu 18.04 for 5 or 6 months now and has been working flawlessly until a couple days ago... I noticed my software updater GUI was co...