The door issue (on any kind of cant) on 185's happens randomly at multiple stations such as Garforth, Slaithwaite, Batley and Cottingley.
(The doors will often only open by a couple of inches and won't spring open the rest of the way fully. This doesn't happen to all doors, just enough to keep you on your toes and varies by unit.)
It wasn't always like this though. Long before they were put onto stoppers, the problem was a persistent one at Garforth (east bound). But only about 2 to 3 years into their operation on the route.
I remember when it started happening more and more often we were told to keep reporting the specific doors that did it to maintenance.
After a while, the message from above switched to "make an announcement on approach and walk down the platform if a door doesn't fully open."
It slowly became the new normal.