Autodesk Simulation Mechanical and Multiphysics

[#1]

First of all, it took me this crazy amount of time to respond since i had some issues so i had to put this on hold for some time, now that im back im almost posivite that it's the last possibility, the load is real and used based on real estimates, ive heard about these mathematical concentrations, now, how do i circunvent them?

[#2]

This is what im getting, really weird. I have coarsed the mesh and added rounded corners.

[#3]

I have completely rehauled the design and increased filets to a much larger radius and refined them accordinly now its safe to assume the design is in fact safe.

Thanks to AstroJohnPE