Latch quit functioning

New latch comes with new gasket. The instructions are simple enough for the installation, but the new gasket needed some compressing before the latch would stay in the "closed" position without popping back open (due to the thickness of the new gasket in the lower area). I tried reinstalling the gasket a couple of times, nothing helped. It just took some time to compress. Also, the new latch varies slightly from the original, but still works perfectly.