sprite bobble On collision with bobble

after i try the first example of construt 2,

i decide to use it to make a puzzle bobble game,

when the bobble on collison with another bobble, i set the bullet speed to 0.

but sometimes the two bobbles will overlapped a little.

i think it's the reason that the trigger is a little late.

how Can i solve this problem?

thank you, all!

don't know if this helps you, but I would add the behaviour "Solid", make the bubbles immovable. They should not overlap and should not move when colliding.

BTW.: Wrong Sub-Forum (<- should be "How do I...?")

thanks very much for your kindly reminding.

I'll go to that Sub-Forum.

i add the "solid" behaviour, it not works.