Enemy Gravity Collision Problem

Hello!

I am starting a platformer and was having trouble with collision detection for enemies when applying accelerating gravity. I know how to do it with a player (single-object) and fastloops but when trying to make events that would work for groups of objects (many enemies) I can't check precisely, rather only after each movement, causing objects to detect a collision once they're already inside the ground. I attached a picture of my code (it's pretty straight forward I think).

Please let me know what you think and what I'm missing.

With the code I had, it behaved almost the same, but resulting in a "bouncing" effect of 1 pixel while the object tried to fall but then bounced back up above the ground or something odd like that.

After a good night of sleep I started from scratch, used some flags and nested loops and had a "checker" object loop under each enemy and I got it to work exactly how I wanted it to. I don't know 100% what I did differently (probably just programmed it correctly this time lol) but sleeping on it works! Thanks for the reply!