Blueprint function library function not working

event tick call the blueprint function library ,but without condition satisfied of checkallcolored function it move to next level

I made this ridculously simple tile check function:

And called it from the level BP:

It works fine.

Can you show a bit more info, like the level BP and the tile function?

i am creating functionality like ball color all tiles then move to next level. my code works on level blueprint but i want to check it on every level then move to next level.so i write it in blueprint function library there it is not working . it move to next level without check the functionality whether all tiles colored or not .it move to next level without single tile colored.

thanks it done, i was not checking the return value.