Problem with «Mask: Simple Shape» saved presets

What is your operating system? Windows 10
What is your Shotcut version? 21.12.24

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


  1. Apply a Mask: Simple Shape filter to a clip
  2. Set keyframes to any of the position or size settings. Leave Rotation at 0
  3. Save as a preset
  4. Apply the preset to a clip.

When you play the clip, the rotation setting switches from 0 to 179.9%
This leaves very noticeable and ugly “steps” on the borders of the clip.

I noticed this bug in v21.12.24
Testing on older versions, I also found the bug in v21.12.21, v21.10.31 and v21.09.22 BUT not in v21.06.29.

This is fixed for the next release.

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