Both the front and back fence gates have gradually started sagging over the years, something expected with vinyl gates… all gates really. I’ve had to reposition the latch bars to get them to catch properly but as the gates keep sagging more and more the latch keeps slowly misaligning and getting hard to close the gates without either lifting the gate up a bit or just slamming them shut.
I finally googled some fixes, then went to Home Depot and bought gate sag kits. They work real well! Although, I had to cut and modify the top post caps on one side of each gate to make the kit clips mount and then put the cap back on. Ugly, but hardly noticeable.