Hi Experts

A & B are identical steel structures, geometrically symmetric and the load applied at a different point in the whole structure is also expected to equally get distributed through A & B

The issue here I find is, the maximum Von Mises stress 487 MPa is found only near "A" but not "B".

1. Where would have I gone wrong in the pre processing ?

2. What should I do/check when I come across these kind of anomalies ?

3.Is there any sanity checks which I can follow to pick these king of issues before I come too far in the FEA process ? I mean at early stages of preprocessing ?