Sliding door

[Buster121]

Anyone help me out, opening main loft door Monday and as I pushed it back it seemed to lift and stuck after a lot of cussing and swearing, lot of force it moved but then every time it just sticks when opening
took slide wheel off and checked but all ok cleaned all track and runner and it shut great I thought I fixed it, what a shock when I went to close loft up and wouldn't move, anyway long story short it open about a 1/3rd of the way then just stops dead I can wiggle and push and it goes a bit further but closes like it should, Help Please

[Buster121]

That's odd.
Maybe the wheel has flat spot and hits a little bump on the runner. Just a guess.

Couldn't see or feel anything but going to get some new wheels and try that

[Buster121]

There’s not a slight bow in the track is there? Or a screw head slightly raised? I had that when a screw had come slightly loose.

Closes perfectly and cannot see or feel owt Andy