I was following this tutorial: https://www.youtube.com/watch?v=_6SQPc961ZE [www.youtube.com]
to try pouring water from a bottle.

But the inside of my Erlenmeyer(the flipobject)kept disappearing after frame 1.
I made the flipobject bigger this time and figured out its working fine after the neck part of the Erlenmeyer
but before the neck the particles disappear.

I tried tweaking the collision volume settings/flip object setting and static object but I cant seem to fix this.

Anyone knows what I am doing wrong?

It seems the Volume Limits in the flip solver were centered on the scene instead of around my flask object and thus cutting it short.

It works fine now