i saw one escaping as it turned from juvenile into adult. it seemed to be purposefully hovering under the roof which was clear glass blocks, then as it changed it 'phased' through the glass block and out (with what looked like a shifty ass wiggle i might add). didnt seem to take any suffocation damage either. i did solve it with timber slabs on the glass blocks. pretty sure i saw one passing through a corner also, like when u pick up mob/villagers with minecarts. was in the new 1.15 update, hope this helps.
scott leamon
i saw one escaping as it turned from juvenile into adult. it seemed to be purposefully hovering under the roof which was clear glass blocks, then as it changed it 'phased' through the glass block and out (with what looked like a shifty ass wiggle i might add). didnt seem to take any suffocation damage either. i did solve it with timber slabs on the glass blocks. pretty sure i saw one passing through a corner also, like when u pick up mob/villagers with minecarts. was in the new 1.15 update, hope this helps.