ok so I loaded this along with these mods:

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2247179438
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=931088249
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2528389350

Result My Rhino STILL Tramples Most small targets to death as intended with Big Game mounts.
It still allows the use of Better Thralls interface & can be set as a secondary follower & gains EXP as intended with that mod.

And it still gains levels past 20 going from 33 to 34 & 34 to 35 (2 tests were preformed) as intended with Thralls level to 100.

HOWEVER after loading this mod Mounting the Rhino & dismounting Yes the options menu in this mod activates But despite setting the Rhino to attack all, Guard Me/Area the Rhino will push the target away but will not Attack the Target I left my Rhino to "attack" a crock for 10 min & Nothing.

not sure whats going on but these are all my Thrall/pet affecting mods & they all work with each other + I have your mods red behaviour options menu so this mod IS active not sure where the issue is.