Regarding the ampersand and other "special" characters there might be another problem going on and it is not clear if QuickBase has fixed the problem or not without a lot of focused testing which I do not have the time for that the moment. Recently several people reported text wrapping on pages (where a non-breaking space character was & n b s p ;) and the appearance of the replacement character in random places on pages:
This problem was reported after they migrated to their new servers.
This is a telltale sign that there is a character encoding problem. At various times in the last week I have noticed the character encoding has changed between utf-8 and windows-1252 and it is currently set to windows-1252. as tested in FireFox, Chrome and IE11 today from the console:
I don't know the status of this issue but it might be contributing to what you are seeing. Only QuickBase can fix this issue.
