SUMMARY Contrary to what ``kdenlive --help`` states, ``kdenlive --render-preset Preset file.kdenlive output`` just opens the GUI and the specified project file. STEPS TO REPRODUCE 1. Create a simple project with two sequences, save it under ``/tmp/test.kdenlive``. 2. Close kdenlive. 3. In a terminal in ``/tmp``, issue ``kdenlive --render-preset MPEG-2 test.kdenlive output`` OBSERVED RESULT Kdenlive GUI opens, with the specified project. EXPECTED RESULT kdenlive renders something or issues a message in the console as to why it cannot, but does not creates the GUI. Acceptable outcomes would be : - it complains that the requested preset cannot be found, and terminates in error, - it complains that the project contains multiple sequences and does not know which one to render, and terminates in error, - it renders each of the sequences with a suffix in the output file name (not desirable imo), - it renders the "first" sequence (not desirable unless there is only one sequence). SOFTWARE/OS VERSIONS Operating System: Kubuntu 24.04 KDE Plasma Version: 5.27.11 KDE Frameworks Version: 5.115.0 Qt Version: 5.15.13 Kernel Version: 6.8.0-48-generic (64-bit) Graphics Platform: offscreen Processors: 8 × Intel® Xeon® CPU E3-1245 v5 @ 3.50GHz Memory: 31.2 Gio of RAM Graphics Processor: NVIDIA GeForce GTX 1650/PCIe/SSE2 ADDITIONAL INFORMATION Appimage 24.11.70. There should be CLI options ``--sequence <seq>`` to specify which sequence of a multi-sequence project to render, and ``--all-sequences`` to render al of them in a collection of files.