SUMMARY When i change the clip's speed, the clip has its start/end fowarded by one frame STEPS TO REPRODUCE 1. Alter the speed of a trimmed clip. OBSERVED RESULT The clip has its start/end fowarded by one frame, which means that the clip begins one frame before where it was supposed to start, and ends one frame before it was supposed to end. The issue becomes very apparent when for ex; You are taking one scene from a movie, then you look at the first frame do your rendered video and it's from the previous scene. EXPECTED RESULT The speed of the clip being altered without being fowarded by one frame. SOFTWARE/OS VERSIONS Windows: 11 ADDITIONAL INFORMATION 1. When i change the clip's speed (in my case i choose 50% speed), the clip has its start/end fowarded by one frame, which means that the clip begins one frame before where it was supposed to start, and ends one frame before it was supposed to end. The issue becomes very apparent when for ex; You are taking one scene from a movie, then you look at the first frame do your rendered video and it's from the previous scene. 2. When using "reverse clip" after adjusting the frames at the beginning and at the end of the already slowed down clip, the clip isn't affected. However, if the clip had no prior edits, and then i apply "reverse clip" at 100%, the clip has its start/end fowarded by one frame, just like i've described in the first situation. When applying "reverse clip" at 50%, instead of being one frame at the beginning and end, now there are two on each. In both cases, it involves a video that got trimmed down into a scene with the razor tool. I don't think the glitch happens when using a video for these speed edits, since unlike trimmed clips, there's no frames beyond the start and end of it.
Created attachment 149949 [details] How to find the glitch How to find the glitch, the same applies with slowing down the clip's speed.
Created attachment 150332 [details] Video clip showing frame number Something is definitely not quite right here. I tried this out with a frame counter video clip (attached) and changing the speed to 50% caused the end frame to end later than expected (start frame seemed correct though).
Maybe someone else can weigh in? If I have a clip with 20 frames, the slow it down to 50% speed, the current behavior is: * frame 1 appears for 1 frame, * frames 2-19 appear for 2 frames each * frame 20 appears for 3 frames If the full clip is longer than 20 frames, then instead of frame 20 appearing for 3 frames, frame 20 appears for 2 frames and frame 21 appears for 1 frame. It seems like the slowed-down clip is starting 0.5 frames too late, and instead each frame of the video should appear for 2 frames each.
The glitch is still there.
*** Bug 424582 has been marked as a duplicate of this bug. ***