Sliding parcel van door issues!



Well the issue it..... it will not close!

It will get into a closed state but I cant get it to 'pull in'

I have had a look and it seamed like it was the alignment of the catch (on the van wall). So I have loosened it and it was ok (but still required some force when lifting the door handle). Upon tightening it would cease to work again (tightened from the inside when locked). So left it loose and was working, but not any more!

Any idea - door alignment looks good. Has had new rubbers, could this be the issue?

Thanks in advanced!

(Note it a 79 Bay)