Well, I admit I have never been a real UB user. But as UB16 initally was fabric installed on my Dell XPS 13-9370 (KBL), I have kept and upgraded UB as part of multiboot with openSUSE Leap and Slowroll on this machine. So I upgraded to the available UB 24.04.1LTS to prepare a new Cingg test on it. Actually my old installed Cinelerra Infinity - built: Jun 30 2020 09:37:43 still startup on UB24.04. 1) I tried first to install the latest cin_5.1.20241009.ubuntu2204_amd64.deb package without success. sudo apt install <package url> didn't work (like corresponding "zypper in" on Leap does) So I downloaded the package and tried sudo apt install cin_5.1.20241009.ubuntu2204_amd64.deb Reading package lists ... Finished Create overview over dependices --- Finished Reading state information ... Finished E: Cannot find the package cin_5.1.20241009.ubuntu2204_amd64.deb What is the issue, when the deb package is in the local directory? 2) So I tried the AppImage ./CinGG-20241120-x86_64-IntelHW.AppImage dlopen(): error loading libfuse.so.2 AppImages require FUSE to run. You might still be able to extract the contents of this AppImage if you run it with the --appimage-extract option. See https://github.com/AppImage/AppImageKit/wiki/FUSE for more information Before this I had installed FUSE according to the wiki sudo add-apt-repository universe sudo apt install libfuse2t64 I had a look back into the AppImage (Fuse) mail thread, and ask here if a Fix was found that can be used here? Terje