Choppy playback, even with Proxy and Preview Scaling on.

When playing back my videos in Shotcut, it often sounds choppy and stuttery, almost like it’s trying to play back at half speed or something (it’s not set to this). Sometimes it does this, sometimes it doesn’t. It’s inconsistent, but most of the time it is choppy. Sometimes it seems like, maybe if I open it and just leave it for a long time, it will suddenly work. I do not understand.

  • ShotcutLog2-6-2026.txt (202.2 KB)
  • I have Proxies turned on for every file.
  • Preview scaling at 360p.
  • Realtime (Frame Dropping) on or off doesn’t seem to make a difference.
  • My ‘Video Mode’ is set to the exact same Resolution and FPS as my source videos I’m editing.
  • I am editing MP4 files.
  • This happens even if I have zero filters running.

What else can I possibly do to get playback to be smoother?

[Specs]

Shotcut Version 26.1.30

Windows 11

Processor: AMD Ryzen 7 9700X 8-Core Processor, 3800 Mhz,
8 Core(s), 16 Logical Processor(s)

RAM: 64GB DDR5

GPU: NVIDIA GeForce RTX 3060 Ti

Storage: SSD

Are you using the hardware decoder (Settings → Preview Scaling → Use Hardware Decoder)? I’m also seeing warnings about not finding hw_pix_fmt on “C:/Users/Chris/Desktop/The Big Rays/In Stereo - Music Video/In Stereo Music Video - VHS Capture/f81c2684363b1022ae985c4735a429df - Reversed1.mkv”, not sure if that matters at all. And at the very end, it says the audio timed out…do you know why that might be?