Casting not working , not player character

I simply want to edit a boolean from one blueprint to another.

I can never successfully cast because I need to put something in the object cast.

it does not matter what I possibly put in it even if it lets me connect something like in this picture it still fails as it “doesent inherit” from attached object. both blueprints im trying to communicate are static mesh actors that exist inside the game .

Can you screenshot to your character blueprint (player control section)

If you’re just trying to get a bool from one BP to another, do this:

If u just wish to edit bool in another BP then save mains charac reference in BP in which u have to save bool by casting at begin play and then you can access the bool in the main BP which u then can set in that BP

there is no main character