Not really, but the latch does engage. It simply has a large amount of play in some of the latch positions... the setback rocks forward and backwards about 3 inches or so. The passenger seat is fine, of course, it stays firmly positioned without any play at all.
Feels really weird and I may just replace the whole seat if I can't find a way to fix it.
My Fiero: 1986 Pontiac Fiero GT, V6, 4-speed manual