Object loses UVs when moved or rotated

[Bartleboom]

Please, could you explain me because of when I rotate or move an object it loses its UVs?

Here I can rotate or move an Object without lose its UVs:
UV-Mapping-Demo UV Corrected.3dm (2.8 MB)

Here I can’t rotate or move the Object without losing the UVs:
UV-Mapping-Demo UV Wrong.3dm (2.8 MB)

The second file has been saved over the first one with some minor adjustments

This can occasionally happen on every object, even a simple box, and there is no chance to get a correct UV

Thank you,
Bartle

PS Please see my previous post

UV Mapping, Rendered Viewport updating and Graphical Interface issues

Dear McNeel, dear Forum, UV Mapping, distorted textures and Rendered Viewport update At the moment I have been spending time on UV mapping, getting different results. I think some issues appear in unexpected circumstances due the fact that Rhino doesn’t always update the Rendered Viewport after UV changes; sometimes I have to move or rotate a bit the object and Undoing the command to see UV updating I started with the effective tutorial Introduction to the UV editor in Rhino 8 on Vimeo by Br…

PSS Tutorial: Introduction to the UV editor in Rhino 8 by Brian J. Thank’s a lot, Brian

Introduction to the UV editor in Rhino 8

[Gijs (Gijs de Zwart)]

that’s really odd indeed. @Bartleboom can you explain what you did that made them go wrong?
It seems only Rendered display is being affected, in Raytraced they still show correctly after rotating.

[Gijs (Gijs de Zwart)]

@Bartleboom I see now why it happens, you have edge softening on in the wrong one.
RH-81433 Edge Softening messes up Rendered view UV mapping

[Bartleboom]

Hello @Gijs,
thanks a lot. Great. When it comes to experience eh eh.

Best regards,
Bartle