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Live unwrap interaction changes unwrapping and ignores pinned vertices
Confirmed, NormalPublicBUG

Description

Blender Version
Broken: 2.79 - 2.83 (sub 10), commit date: 2020-03-19 13:43, hash: rB42012493a8e1
Worked: Never

Short description of error
Grabbing and moving one of the pinned vertices seems to kind of reset the unwrap, even ignoring the pinned vertices.
Short video demonstration:
https://streamable.com/eesv3

Exact steps for others to reproduce the error

  • Unwrapped parts of an object.
  • Pinned some vertices in UV editor
  • enabled live unwrapping.

or

  • Open this file:
  • Go to edit mode
  • Move pinned vertices.

In some cases it also just doesn't do anything at all:
https://streamable.com/ignig
Here is a file showing this other problem:

Event Timeline

Ankit (ankitm) changed the task status from Needs Triage to Needs Information from User.Mon, Mar 23, 2:09 PM
Ankit (ankitm) added a subscriber: Ankit (ankitm).

Please add a simple blend file to help redo the bug with steps to redo.



In both files just grab a pinned vertex in the UV editor and move it around, you should notice the same effect as in the videos and described above

Ankit (ankitm) changed the task status from Needs Information from User to Needs Triage.Tue, Mar 24, 7:43 AM
Germano Cavalcante (mano-wii) changed the task status from Needs Triage to Confirmed.Tue, Mar 24, 2:58 PM
Germano Cavalcante (mano-wii) updated the task description. (Show Details)
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Bug".