Everything seems to be in order according to your instructions, i only have one user account which is myself. I tried to set and outbound rule for notepad with the same result.
I use win 11 latest update, when i try to add an inbound or outbound rule i don't get an error message but the rule shows as in the image attached. I have 2 computers with windows 11 pro and they both act the same. I don't use any virus software besides defender.
Any suggestions ? any solutions...