Hi,does anybody know the problem and have solution,thanks in advanced.

i create a very simple scene with a flat tank and a rigid body ball,the ball is falling into water,when set “Creation Frame” of ball to 1(the same as flattank's),the simulation is ok;

but,when set it to other frame,say 10,flip will explode when ball touches…

Indeed a strange behavior. Now I would also be interested into the reason why this is happening.