Is this supposed to happen?

I was messing around with a small stature character by the lazy river tube collection point when i fell through the map

Steps to Reproduce

grab a small character PM (or a tiny potion i guess?)
walk up to any (and i do mean any) of the tube stacks in public plaza
walk up against the tubs

What I expected to happen

you know, a simple run animation against the tubes,

What happened

i fell through the map, this affects all the tube towers in public servers

Notes / Media

Other misc notes about the bug. Picture or videos would be much appreciated!