No sound after recent update. Any way to fix?

I got to Shakespeare's skirting board, and as far as I can tell I've tried every possible move and nothing has gotten me anywhere. https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3496809336

Above coordinates [161, 202] I can't find a way to get to a set of islands, though every single surrounding direction gives some promising ideas. Here's image of the place (may contain a lot of spoilers for new content): imgur I'm asking for a hint, especially which direction should I enter it from? Then this could be used as a general hint thread, I may be able to help with other puzzles....

Island coordinates are 86.2002, 168.2354 would appreciate some help https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3258941189

idk if I'm missing something but when you finish the game and the unvisited exhibitions become visibly marked on the map I realised I hadn't actually interacted with many of them, so I went round and did so, but I'm still at 159 and there are no more visible on the map, for a second I thought "oh maybe its like a final secret after all the snowmen or something" (I only have 15/60) but looking at the steam achievements this does not seem to be the case......