SUMMARY The GUI element to save current rendering settings as a preset adds/changes parameters to the profile. STEPS TO REPRODUCE 1. Open the Render dialog. 2. Click on the MP4-H264/AAC preset 3. Check full color range rendering and set quality to 65% 4. Click on Save current settings as a custom preset. 5. Set the preset name to eg. Test ; do not change anything else. OBSERVED RESULT The actual parameters for the MP4-H264/AAC preset are : ab=160k acodec=aac channels=2 color_range=pc crf=26 f=mp4 g=15 movflags=+faststart preset=veryfast real_time=-4 threads=4 vcodec=libx264 The actual parameters for the custom Test preset are : ab=160k acodec=aac bf=0 channels=2 color_range=pc crf=18 f=mp4 g=15 movflags=+faststart preset=veryfast real_time=-4 threads=4 vbufsize=0 vcodec=libx264 vmaxrate=0k EXPECTED RESULT Both should be exactly the same. 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