1- This was the browser version, unfortunately.
2- That is correct. I couldn't move items around, or close the storage. It just wasn't responding at all.
3- This was the second time I had been in the room, and the second time that day. I had entered briefly, left, and almost immediately returned. I did not access the chest on the first visit.
4- No, this was my very first playthrough
5- I had used a potion that turned me into a sheep. I was still in sheep form the first time I entered the room, exited, and then reentered once the potion wore off.