Weird physics once i set Rigid body

[OkyDoky]

Hello ppl ! Im a newbie of blender and i was trying to re-create a scene seen on youtube ( a simple glass of water with an ice cube splashing in it.).
Fun fact is that when i set active rigid body to my cube over the glass this makes the cube "jump" away in random directions instead of falling down ..

Already checked the timeline and the graph to find out if there was some accidental location canges, to explain this random pushing force ( itz a simple scene and i didn't set up any force or wind or anything else ... maybe it will end up to be just a bug .. don't know what to think, anyone of you had or have this problem too ? )

thank you to everyone whos will try to solve this :D

[OkyDoky]

just solve this problem .. had to set the Rigid body to "mesh" instead of "Convex Hull" of the plane i used for the background ... the cube was trying to escape from the inside of the collision area.. thats it .. xD good to know for the future

( taking this discussion up for the ppl to will find this "problem" too, maybe will be usefull somehow =) )

[+Rusty+]

ty and also it's good to see someone actually post there solution for anyone that ever may have the same problem instead of the ol "it's ok i fixed it"