Undo Error-Loop [Confirmed Bug -v.2021.1.5.186]

[sevengreen]

Hej.

is it possible to overcome an error-pop up-loop ?
if you pin an invalid node to another you cant go back beyond this step with the "undo"-command.

How to reproduce:
1) start modo
2) add a sphere
3) press (M) and call the Materil Group TEST
4) add octane override material to that group
5) dissconnect the Octane RGB Color from the Glossy materal
6) Drag the Specular Color from the Modo Material(ShaderTree) in the Octane Schematic and Connect it to the Glossy Material Diffuse
7) Click ok on the Error Massage (invalid pin...)
8) [STRG]+[Z] to undo this step.
---
you are now stucked in this error loop and cant get back to eg step 5) or before.

win11 / modo 16.0v1 / plugin 2021.1.5.186 studio

[face_off]

Thanks for the bug report. I will try and fix this for the next release.

Paul