I encountered the same thing, can't seem to jump myself out. So I reloaded my saving. It helped.
In the end, I suck at jumping, so I skip this mission. Poor boy stayed in there forever.

Fontine11 の投稿を引用：

I encountered the same thing, can't seem to jump myself out. So I reloaded my saving. It helped.
In the end, I suck at jumping, so I skip this mission. Poor boy stayed in there forever.

Haha, I reloaded and succeeded when giving it one more go - shame I had to go through all the little cutscenes, wouldn't have made a third attempt!

Surprised they didn't pop a little autosave when you find him in the shed, that woulda made it less tedious.