A couple thousand feet in elevation will make many atomizers leaks, I've been there.
I've been folding leftover cotton or paper towels then tucking them in under the VapeSnail opposite of the air inlet being sure the stay clear of the atomizers air inlets in the bottom.

I've had the fill flaps come out so tucking a cut o-ring piece in where the flap is anchored has illuminated that.

https://www.fasttech.com/forums/9724879/t/3072023/anniepan-510?3095815