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Geometry nodes : Exposed and Driven values updating only in the modifier panel and not in the viewport
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System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.92

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-04-01 15:32, hash: rB76cdcc2bcadc

Short description of error
Driving exposed values don't update them in the viewport but everything works fine if driving the values in the node tree.

Exact steps for others to reproduce the error

  1. Select the red cylinder and change the radius and vertices. You can see that the green cylinder immediately corresponds to the changes.
  2. Select the blue cylinder and toggle the bevel modifier to see the changes.

Event Timeline

I think this is the same problem.

In this case, I will merge the reports.
If the other is solved but this one is not, then I will reopen this as a different problem.