Palace of Dead Missing Pet or Pet aggro between floor

Sometimes, Pet will be missing mysteriously when we teleported to next floor. Sometimes, when you teleported to next level, before the screen turn from black to bright, you already hear the "aggro ching" sound. then, your pet is aggro something which running toward master or pet from 2 rooms away (while pet was with me all the time, well at least when the screen is bright again [using SATA SSD with good PC setup, so the load time is very short]).

I've been observing this situation for a while. one of the situation seem to be leaving the pet outside the teleport ring. I'm not saying "place" the pet outside the teleport ring, but let pet follow, master stand at the edge of the ring, so the pet is outside. "Sometimes" it will trigger the aggro effect that the mob will go directly to my pet. sometimes, the pet will be missing and the mob directly running toward me.

I was suspecting it's every 3 5 7 floor when music changes, but no correlation to it.
I was suspecting it's pet outside + pet is doing some action (such as Embrace) and got lag behind. (not consistantly will trigger pet aggro or pet disappear effect)

hopes you guys can find out what happens with pet during teleport between floors.
I'll continue test with "place" and obey pet and let it continuous Embrace while standing outside the teleport ring.

There's anl known issue with pets & transportation between floors. The only way to deal with it at the moment is to dismiss the pet before transportation & summoning it again on the next floor. Yes it's annoying but it can save wipes if the pet pulls a floor of evil.