User blog comment:Otakon7/Otakon7's Buddyfight Simulator/@comment-10483040-20160314163814/@comment-2234004-20160314164508

No, I asked for the private/incognito and/or new browser trick.

New tab trick is to avoid building the whole deck all over again if you're logged out (which you can see by opening the homepage of the sim in a new tab).

Anyway, I applied a small fix to the deck builder, if my hunch was correct, this should fix the error, if not, back to the trick I mentioned.