Any help?

That little dial at the end of your dropper lever, turn it clockwise a bit to take the slack out. If the seat won’t stay down turn it counter clockwise until it holds. Cable stretch is a thing and you need to adjust tension for that. If it gets beyond the point where that adjuster stops working to take out the slack then loosen the cable, dial the adjuster all the way in, pull cable tight but not enough to trigger it, then tighten the screw that holds the cable in place.