Bad Shadow artifacts with only a few meshes when Ray-Tracing is on

When Ray-Tracing is on, I’m getting bad shadow artifacts on this one mesh. What issues could this mesh have why the shadows are like this! Please see attachments. Any help here will be very much appreciated.

System Specs:
RTX 3090
AMD Ryzen 3950x
64BG RAM


Any assistance here?, really struggling with this. Many thanks in advance if anyone has any info about this problem.

The problem here seems to be nanite and the ‘Fallback Target’ being set to auto. I set it to Percent Triangles and set the number to something that works well for my model and that solved the problem.

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