https://bugs.kde.org/show_bug.cgi?id=355398
--- Comment #4 from qubo...@gmail.com --- > 15.13-git master That's not too clear. Do you mean Applications/15.12 branch? Or is there a package somewhere that has that version name? Can you tell us more details about the nature of your render? Are any transitions or effects used? Is Movit (GPU rendering) enabled? (I experience crashes during render with movit effects). I tried some more: Test 1: 4k 29.9898fps rendered in HD 1080p 25fps profile without scaling Test 2: 4k 29.9898fps rendered in HD 1080p 25fps profile WITH scaling to 320x180 Test 3: 4k 29.9898fps rendered in HD 1080p 25fps profile WITH scaling to 1920x1080 (nonsense) Test 4: 4k 29.9898fps rendered in HD 1080p 25fps profile WITH scaling to 2440x1372 Test 5: 4k 29.9898fps rendered in 4K UHD 2160p 25fps profile WITH scaling to 2440x1372 Test 5b: 4k 29.9898fps rendered in 4K UHD 2160p 25fps profile WITH scaling to 2440x1372 (4 encoder threads instead of 1) Test 6: 4k 29.9898fps rendered in 4K UHD 2160p 25fps profile WITH scaling to 1920x1080 Test 7: 4k 29.9898fps rendered in 4K UHD 2160p 29.98fps profile without scaling (4 encoder threads, full length video - 00:01:22:12 instead of short piece) Test 8: 4k 29.9898fps rendered in 4K UHD 2160p 29.98fps profile WITH scaling to 1920x1080 scaling (4 encoder threads, full length video - 00:01:22:12 instead of short piece) All successful Unless noted otherwise: I used a 1:22:10 (m:s:f) file and rendered a 0:0:03:14 (h:m:s:f) piece of it with no effects or transitions. MP4 H.264/AAC fast Video quality 20, Audio bitrate 160, threads 1, Export audio yes, movit off. ffmpeg 1:2.8.4-2 mlt-git r4154.v0.9.2.376.g9e04d46-1 kdenlive-git 15.13.0.r6866.e43f3d4-1 -- You are receiving this mail because: You are watching all bug changes.