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VSE: Grabbing and dropping strips with a crossfade on them can cause incorrect snapping
Open, Confirmed, LowPublic

Description

Blender Version
Broken: 2.80

Short description of error
In the VSE: when grabbing/dropping a strip that has a crossfade attached to its left side, on top of another strip, the crossfade can block the strip from snapping where it should, causing the dropped strip to snap backwards in front of other strips.

Difficult to describe, but easy to see in action:

Exact steps for others to reproduce the error

  1. Import/cut three strips into the vse with space between them.
  2. add a crossfade between the two leftmost strips
  3. grab the middle strip, and drop it over the left edge of the rightmost strip

The dropped strip SHOULD snap to the leftmost edge of the right strip, but it will now snap back to the left of the leftmost strip

Expected behavior
The dropped strip should snap to the leftmost edge of the right strip, exactly how it would behave if the crossfade were not there.

Details

Type
Bug

Event Timeline

Jacques Lucke (JacquesLucke) lowered the priority of this task from Needs Triage by Developer to Needs Information from User.Wed, Oct 16, 4:06 PM

Please prepare a simple .blend file (using simple color strips) to make reproducing the issue much easier.

ok, here's an example file -

Press G to move the selected strip (titled 'Grab This'), drop it so its a little bit over the right strip (when it turns red).

Delete the transition (strip between the left strip and grab this) to see how its supposed to behave.

Jacques Lucke (JacquesLucke) raised the priority of this task from Needs Information from User to Needs Triage by Developer.Wed, Oct 16, 5:44 PM
Germano Cavalcante (mano-wii) lowered the priority of this task from Needs Triage by Developer to Confirmed, Low.

I can confirm.
It is easy for the user to work around this problem, so I put low priority.
@Richard Antalik (ISS), is this your area?
(If you don't consider a bug, you can close it).

Will look into this, still working on high prio stuff