Created attachment 122213 [details] Shows problem SUMMARY STEPS TO REPRODUCE 1. GPU is On. No thumbnails in project bin for clips. 2. GPU is Off. Shows thumbnails in project bin for clips. SOFTWARE/OS VERSIONS Ubuntu 19.04 Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION Notebook MSI GL73-8RC-252XRU
Created attachment 122214 [details] I'am sorry! This is rial video!
Thanks for reporting. MLT is not stable that Kdenlive can use MOVIT. And it leads to strange issues. This is the reason why GPU acceleration is switched off in the AppImage. Please switch off GPU until the Devs find a solution. I link it to Bug 380019 to have a collection of all Movit issues. *** This bug has been marked as a duplicate of bug 380019 ***