To reproduce:

1.Download and open attached project
2.Open "test" scene
3.Press Play
4.While in game Mode increase velocity variable of SelectMe GameObject in Caster component to have positive values
5.Observe Console logs

Reproduced with: 5.5.0f3, 5.6.0b3
Not reroduced with : 5.3.7p2, 5.4.3p3, 5.5.0p3

Bug first appears in : 5.5.0f3

Expected result : Physics.CheckBox method always returns false value.
Actaul result: Physics.CheckBox method returns both true and false values.

Note: Wrong values are produced only when GameObject has Rigidbody.interpolation enabled