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Cycles: Each time you move an object with displacement shader, it's move up and up again
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System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.72

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-15 15:11, hash: rB1b29e84c18dc
Worked: ~

Short description of error
I have some strange issue with object and displacement, each time I move an object with dispalcement it's go up. Anything what makes your object to redraw, will make it normal again.
I use optiX and latest studio drivers. I couldn't test it with other versions, I hope it's ok.

Exact steps for others to reproduce the error

you can use this file, go render move and just move object any axis

Event Timeline

Kévin Dietrich (kevindietrich) changed the task status from Needs Triage to Confirmed.Mar 16 2021, 4:40 AM

This only seems to happen in 2.93.

I'm not sure, should I create another issue, but I have a little similar problem with bevel node, in the way it can be fixed if you switch render mode and come back. Please take a look, it happens with optiX and Cuda as well.

It's just default cube (I have some booleans so it looks more obvious, but with simple cube and default scene is the same behavior) with simple shader and bevel node connected

@AiSatan (AiSatan) please open another bug report for this other issue.