Bug creating slimes.

Today I was trying to create a slime in mcreator but I had a series of problems. No ai parameters when placing Entity base: slime along with Enable Ai just an error happened:

http://prntscr.com/rprf08and

even if you change or deselect any of these options when I start this time without the error, the mobs I created do not jump, they just walk around like any other mob.
I tried in many ways to solve this, I looked in the topics in the forum but nothing that can help me.
I would like to know what to do so that my slimes can jump and have a good Ai after all I am making this mod as a homogeneous to a game that I really like ...
if any of you know how to help me please answer here i need it urgently.
in case you want to contact me my discord is TheKingOfLight # 7323