All 1080p clips work for me until a 4K clip shows up. Since the 4K format appeared, subsequent files stopped working (the next files are already in 1080p format).
Look what happen in Vegas:
OF COURSE IN VEGAS NUMBER 13 THIS PROBLEM DOES NOT OCCUR. ONLY THE CREATORS OF VEGAS 21 can't do it.. Still the same, it's a comedy. I can't have ANY project finally made without bug, errors, problems etc... It's amazing how much this software is WASTING my time while working on it.
My specs in signature.
4K FILE:
General : P:\[FILMY W TRAKCIE TWORZENIA]\[CYKLICZNE]\Recenzje sprzętu\Multitool Roxon Storm\Surowe\Przebitki\5D__2380_4K.MOV
Format : MPEG-4 at 532 Mb/s
Length : 946 MiB for 14 s 915 ms
Video #0 : JPEG at 530 Mb/s
Aspect : 4096 x 2160 (1.896) at 29.970 fps
Audio #0 : PCM at 1 536 kb/s
Infos : 2 channels, 48.0 kHz
Language : en
1080 file:
General : P:\[FILMY W TRAKCIE TWORZENIA]\[CYKLICZNE]\Recenzje sprzętu\Multitool Roxon Storm\Surowe\Przebitki\5D__2369.MOV
Format : MPEG-4 at 181 Mb/s
Length : 175 MiB for 8 s 108 ms
Video #0 : AVC at 179 Mb/s
Aspect : 1920 x 1080 (1.778) at 59.940 fps
Audio #0 : PCM at 1 536 kb/s
Infos : 2 channels, 48.0 kHz
Language : en