Strange Visual Glitch

Anyone got any idea what’s going on here ?
I’ve run _selBadObjects and there are none…


(i’m in shaded view with default options set)
… surface looks the same in all views

I’d extract the boundary and look for self intersections.

Is it a trimmed patch surface?

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s’ok. Found the issue : mods feel free to delete post ?

just a _planarsrf derived from interpolated curve

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