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I cant pass none/null/nil from volume to character function

So i have a Volume that when you enter i set a variable in my Character as a reference to this Volume.
Then, when you exit (OnComponentEndOverLap) I call Set variable in Character and pass nothing, so the Volume reference should now be None.

but the variable in my Character never gets set to None it just stays the current value (the Volume I’ve just exited).

What am I missing ?

umm, nothing is nothing soo you not can change nothing. try to send 0.

sorry i mean, i call Set Volume in Character and pass None - where it’s expecting me to pass my Volume actor
so because I dont join up any object to that input i assume it should be None.

I can’t send a float/int as it will fail - infact blueprint wont let you connect it up as it’s a cast fail