Folks

Am I being stupid here?

Drained the old engine oil.
Undid filter under engine.
Removed filter lid/canister.
Pulled filter downwards = STUCK

It will not come of it's spigot. I have pulled, twisted, heaved. Nothing.

It will not come out. I have replaced loads of these from above with no issue.

I have the new one in my hand and it has nothing to show why it would stick.
Any clues.