SUMMARY STEPS TO REPRODUCE 1. Create image sequence with 1 image per frame (timelapse for example) 2. Put part of this image sequence into timeline 3. Change clip speed (on timeline) to 1600% OBSERVED RESULT Play the video or render project and you get wrong results - random laggy images instead of smooth image sequence playback EXPECTED RESULT Image sequence played/rendered correctly with increased speed ADDITIONAL INFORMATION This short video show all the process and buggy result: https://youtu.be/x9JtsHdpGCc
*** This bug has been marked as a duplicate of bug 392670 ***