Curious that you are having an epic battle with photobucket, Dittzzy, have had a similar experience.
Click on the share and it see to take an age, then the copied will not come up and the whole thing seems to have been cranky. I got a bit of a virus scare a few weeks ago, after accidentally triggering one of their intrusive flashing popups, had to sign out and do a complete virus scan and cleaning job. Since I had another virus alert after uploading, but by signing out immediately after using, and making sure I am not signed too long when I am not using PB, it seems to have settled down and the uploads and codes seem to be working fine.
Rather a fun idea with a tree, in Hampton Court where I have been trying to find an 'alternative way'. An interesting variation may be a catch pit cover on a tree stump