Just spitballing here, but what remote do you have. I have been reading where some members who have certain remotes, that the remote overrides the wall switches. I know this has been happening to those who turn on their porch light with the remote...then the wall switch doesn't work, till they turn off the light with the remote again.
You might can read the instructions for the remote and see if there is some kind of manual override to the remote.
Like I said, just something to think about to see if that's also the case here.
Porch light will not go off