SUMMARY Kdenlive doesn't Play Clips anymore. It worked. Than something happened. Probably over night. Maybe another useless Windows update in the Background Maybe. And now Kdenlive doesn't work anymore. I updadet all grafic-drivers, via https://www.intel.de/content/www/de/de/support/intel-driver-support-assistant.html and deleted all Cache files (C:\Users\[YOURNAME]\AppData\Local\kdenlive C:\Users\[YOURNAME]\AppData\Local\kdenliverc C:\Users\[YOURNAME]\AppData\Local\stalefiles\kdenlive C:\Users\[YOURNAME]\AppData\Roaming\kdenlive) did a complete Fresh install of kdenlive 19.04. STEPS TO REPRODUCE 1. Install Kdenlive 19.04 on Windows 10 for being used by everyone 2. Add Clip (640 x 480 x 29,97fps) to Project bin 3. Drag Clip to timeline 4. Play Clip either in Clip monitor or in Project monitor OBSERVED RESULT Clip Plays very very stuttering. If at all. The playhead (the small black triangle) doesn't move on the timeline on click. EXPECTED RESULT Clips that Play well in the Clip or Project monitor. SOFTWARE/OS VERSIONS Windows: 10 Pro KDE Frameworks Version: 5.57.0 Qt Version: 5.12.3 MLT: 6.15.0 ADDITIONAL INFORMATION The same bug is in the current portable Version for Windows 19.04.1
I don't know what happened. After another Driver update with a Special Software ('Driver Booster') some other Drivers were updated, that were up to date according to https://www.intel.de/content/www/de/de/support/intel-driver-support-assistant.html. Now the clips are playing again in Kdenlive.
Thanks for reporting and feedback. Glad to hear it works. It seems it works. We close this bug. If it still appears in the latest version, please feel free to re-open it and update the affected version number.