Normals Problem

[TWYSSTEAM]

Hello everyone! I got a big problem. Some objects I upload to the project have their normals flipped, although they are not flipped in Blender. I tried to fix it using YouTube tutorials, but they don’t help, the normal orientation doesn’t change. What could be the error, and how can I fix it?

[BRS_GerDAngelo]

Hello @TWYSSTEAM!
Can you share Blender Screenshots with the face orientation activated?

There are some CleanUp addons that can help you in Blender as this one:

Mesh Repair Tools

Another one is InstantClean which is really good, but is paid:

Instant Clean - The Ultimate Mesh Clean

In Unreal you can also open your mesh, in the details panel, at the right, expand Build settings and check “Recompute Normals” in the list, and click Apply Changes on the bottom button.