Transformation - Value issues while rotating

Doesnt work… As you can see in the blueprint, i fixed the value of the “make transform” to 90 degrees in z-axes, but ue4 tells me 89.9999995 in the editor.

It doesnt matter what values you put into the make transform node, they can be super precise, but the node itself seems to handle the operation of calculating angles wrong (floating round error you mentioned?) . This does not really make sense to me either, because i am telling the exakt angle, there should be nothing to calculate…