Using "Compressor" Audio Filter Causes Waveform Corruption and Intermittent Crashing

What is your operating system?

Bazzite 44 (Fedora-based), installed via Flatpak.

What is your Shotcut version (see Help > About Shotcut)?

26.8.1

Can you repeat the problem? If so, what are the steps?

  • Put several audio clips in the timeline, recommended a few minutes at least, and they should extend beyond the current window (should create a horizontal scrollbar).
  • Add the “Compressor” audio filter to the track (not the clips individually).
  • As soon as the compressor is added, scroll to reveal more of the timeline.
  • In a new test, repeat the first two steps but then immediately add another filter to the track or grab the fade in/out handle and attempt to drag it for a clip.

The results I get are that:

  1. The audio waveforms are either removed entirely beyond the current window OR they look corrupted, and:

  2. Attempting to quickly make more changes after adding the filter sometimes crashes Shotcut after 30 seconds or so of hanging (this is intermittent).

I have attached a screenshot of the waveform corruption, as well as a log from my most recent crash.

Shotcut Crash On Compressor.txt (589.4 KB)