My girls are about 9 years old and still happily climbing, so not sure if and when that could change due to age. Have you recently cleaned his enclosure? Last time I did, one of my girls only wanted to hide under a plant on the ground for a few weeks, but she eventually returned to her other favored spots. It could be a comfort thing since it does look like a well-hidden spot to stay safe in from a froggy perspective. As long as he has a good appetite and is otherwise healthy, it could possibly just be a phase.
Poe is very cute, btw.
