Weird bugs with meshes and textures

These bugs appear in the build, my game works absolutely properly in the editor. Some objects in my scene began to turn into an incomprehensible black something. Some, for example, a knife, have stopped to be drawn at all. Some have strange black squares on the texture, and some have colored ones. If I disable the mesh renderer, the bug disappears. Tried changing different lighting settings and changing parameters in their mesh renderer. Also tried disabling post-processing. Nothing helped. Please tell me how can I fix that.

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