Blender 4.1 shading problem

[Aztec3DStudios (Jayah)]

I’ve recently updated to Blender 4.1, but I’m having some sort of shading problem whenever I go into flat shader. Anyone know how to fix this? I usually was able to turn it off by disabling the Auto Smooth check in the Data tab. TIA

[mickmoo]

Have you got more than one vertex at the intersection of the Edges? Ive had this happen before and give that shading effect.

[Blender_Fun1 (Blender.Fun)]

…or your face orientation is wrong? if you don’t want more guesses…maybe share your blend file, than we can tell you…

[Aztec3DStudios (Jayah)]

Shading_Problem.blend (864.9 KB)

You can give it a shot. Face orientation is facing the right way

[Aztec3DStudios (Jayah)]

No I don’t. It was fine in V4.0 but once I updated it changed.

[Magogg (Flavio Della Tommasa)]

First step — > Clear custom Split Data, and Shade Smooth

Or… insert a modifier Weight Normal

[Aztec3DStudios (Jayah)]

It worked! Thank you so much, I appreciate the help.