Forces for dynamic load cases are 0 in RAM Foundation for foundations that support a brace member and are lowered. The dynamic load case forces are not used in the foundation designs.
The issue will be resolved in the release after v15.03.00. In the meantime, either revert to the prior version 15.02.00.00 or modify the braces so that they intersect a few inches above the base. This can be accomplished by re-modeling the braces using the "knee brace" standard configuration or by adding an extra short story at the base with only columns (and foundations) modeled.