Alright. So. I apologize for the PC quality, but I think it's enough to tell.
In the previous MKX builds, you could make the drone attack AS SOON AS the blue light (where the drone spawns) flashed. It would then proceed to attack as commanded. With *any* drone special.
In the current build, you have to wait significantly later, until the drone is fully formed.
This DOES NOT depend on any combos and is evident in the neutral.
Hopefully someone else with both versions (or who knows what I'm talking about) can back me up so I don't have to re-record lol. Literally just wanted to get it done as quick as possible so sorry for absolute zero quality