Embed Reply To Interaction not working

Everytime i try to use the block it gives me a error saying “Unknown Interaction”

This is not a bug. You need to put a “Defer Interaction” block at the beginning of your flow. If it ever takes more than a certain amount of time (I think it’s three seconds, but I’m not positive) for your bot to reply, then Discord will forget the interaction information and Inventor will have an error.