Local WildCard type won't update

I meet a problem.
when I use Local WildCard note in Macro,I find it’s type won’t update:


It cause the blueprint compile error.
I can not let it to become any specific type even if connect it to an set note:


I find this bug on UE 4.17.2+VXGI.

Same problem is for “Local Array of Wildcards” (UE4.18.3)