Nothing strange when it comes to London tube.
My experience with Train system in UK
- Train delayed for hours because of “Wrong type of leaves on track”
- Train delayed for hours because “Replacement driver is waiting on different station”
- Train delayed for hours on suspicion that someone may be in tunnel.
- Train delayed for hours because few drunks decided to walk on track.
I’ve known all of the above, but not closing multiple stations at once.