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Vertices visible in XRay/Edit Mode can't be reselected after initial select and transform operation
Closed, ResolvedPublic

Description

System Information
Mac OSX Sierra (10.12)
nVidia GeForce GTX 780

Blender Version
Broken: 2018-11-10 00:04
Hash: dc21ef7b86c
Branch: blender2.8

Short description of error
Vertices visible in Xray/Edit Mode can't be reselected after initial select and transform operation

Exact steps for others to reproduce the error
Tab into edit mode, Select a vertex in wireframe view mode (at the back of the mouth in the included .blend file), move it, select another vertex, move it also, attempt to select the first vertex again, and it will be un-selectable. This happens in more than just this file, and on multiple computers. I hope I'm submitting this correctly. This is my first time submitting a bug to the Blender Foundation. Thanks.



Related Objects

Event Timeline

Philipp Oeser (lichtwerk) triaged this task as Confirmed priority.Nov 12 2018, 12:31 PM

Can confirm (also tried different OpenGL selection methods in User Preferences to no avail), seems like something is not updated in the selection buffer [not familiar with that part of the code though...]?
If you click in the same place where vertex was position previously (the "original" position -- without the translation), you can still select that vertex just fine...

@Campbell Barton (campbellbarton) : mind having a look?

Philipp Oeser (lichtwerk) renamed this task from Vertices visible in Wireframe/Edit Mode can't be reselected after initial select and transform operation to Vertices visible in XRay/Edit Mode can't be reselected after initial select and transform operation.Nov 12 2018, 1:29 PM

Doesnt have to be Wireframe, XRay is the suspect here (also hns in solid, lookdev, rendered)...

Maybe @Clément Foucault (fclem) knows, too?

Here's a quick screencap showing the bug (on ubuntu linux)

https://youtu.be/mKlW1-RJY1g

A workaround for this bug is switching out and in of edit mode. I assigned TAB to change between modes instead of opening the Modes Pie, so it's a quick double tab to fix.

Another thing that I can add is that this isn't specific to vertices. This bug also affects edges and faces.

Philipp Oeser (lichtwerk) raised the priority of this task from Confirmed to High.Wed, Dec 5, 1:09 PM

just to mention another selection-related bug: T57125 (havent looked at code, but these might share same roots...)

This is being reported quite often now, so I'll poke @Campbell Barton (campbellbarton) again to share his wisdom (or put on someone elses desk...) and set on High priority...