Would it be possible in the initial tutorials to put a warning somewhere about logging in on different computers making your previous solutions to puzzles disappear. It is too late for me, apparently, but it might help other new players. When I couldn’t access my solution to a similar puzzle, I consulted the Wiki. Before that, I was too busy having fun playing to read the wiki.
Your puzzle solutions gets stored in the computer locally. This means your puzzle solutions are there, on the computer you played on previously, but not on on the one you are playing now. And the puzzles you solve now, won’t be on the computer you played on before,
Good to know.