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Node link is hidden when working in the shader editor
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System Information
Operating system: Linux-5.3.0-arch1-1-ARCH-x86_64-with-arch-Arch-Linux 64 Bits
Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 435.21

Blender Version
Broken: version: 2.81 (sub 12), branch: master, commit date: 2019-09-23 20:20, hash: rB5a6ab6f59468

The error appears to start from commit ce34a6b0d727bbde6ae373afa8ec6c42bc8980ce

Short description of error
A single link between nodes is not drawn when working with the nodes and a 3D editor visible. Selecting or deselecting the object in the 3D editor makes the line appear or disappear.
Found that this only occurs when the 'floor' and world axes overlays are disabled in the 3D view (but not /all/ overlays disabled). Otherwise it works as normal.

Exact steps for others to reproduce the error
From the default scene, switch to the Shading workspace tab.
In the shader editor, the line connecting the principled node and the output should already be hidden.
Re-selecting the default cube makes it reappear.
Selecting the principled node makes it disappear.
Adding new nodes and new links will show it is only one link being hidden.
"Reconnect" the hidden link and one of the others will disappear.

Event Timeline

Philipp Oeser (lichtwerk) lowered the priority of this task from 90 to 30.Sep 25 2019, 9:57 AM

Cannot reproduce here (linux, 970m, 435.21 drivers).

There was T70155: Invisible Node Links (but probably unrelated -- unsupported GPU)...

  • does this happen with File → Defaults → Load Factory Settings as well?
  • does this happen with File → Defaults → Load Factory Settings as well?

Yes, it still happens.
I also switched over to an unused Ubuntu partition (5.0 kernel, I think and 418.56 driver) thinking it may be Arch library strangeness.
I downloaded from the latest from, but it still happens which, I'm guessing, means it's the 2070 card with the problem.
I have my old 770 which I can swap in to test, but it will have to wait until tomorrow.

A video just in case

Philipp Oeser (lichtwerk) raised the priority of this task from 30 to 80.Sep 25 2019, 11:32 AM

Hi there, I am facing the same issue here, the line just din appear when I am using the node editor even after I try to drag the link to connect the two nodes, what should I do?
I also had the opengl driver installed already.

Hi. I've had the same issue. I am running my blender with openGL, so I've tried using MESA3D's opengl32.dll file, and that worked for me.