Grim... wrote:
How come?
More seriously though, the only thing I can see is that the sliding rail seems further forward on one side than it is on the other.
When I was moving the seat into the house I inadvertently activated the sliding mechanism and just under it's own weight and the pull of gravity, the seat slid way further forward than it should have been able to. We managed to get it back into some semblance of a normal position, but I wonder if that "unbalanced" the rails in some way.
Seems unlikely that they've been off-kilter since the seat was installed (it's not the original seat) but couldn't say for sure.
Either way, I think I'm going to have to detach the rail base from the rails and reattach them and see if that helps. Problem is, I haven't got a fucking clue what I'm doing so I'm likely to just end up making things worse.