{"ops":[{"insert":"As the title says. I can replicate this issue pretty reliably by creating a new deck, editing it a bunch, then clicking the playtester button.\nI get an \"unknown browser error\" \"Cannot have two MultiBackends at the same time\"\n"}]}
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{"ops":[{"insert":"Are you using firefox by chance?\n\nI've only ever seen that error occure in firefox, but unfortunately I've never been able to pin down specifically what happens. It's my understanding that it occures due to a timing issue when loading parts of the page. I say unfortunate because I don't really have a great solution to the issue (assuming it's the same one).\n \nWe can try to clear your cache, according to some that can help with this (though I suspect that it's more that it's a timing issue that occures quasi randomly. But to clear just your cache for archidekt, you can click the icon immediately left of the URL bar and choose clear cookies and site data. From there you can follow the steps to clear just the archidekt cache in your browser. \n"}]}
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{"ops":[{"insert":"Yes, I am using firefox. Clearing the cache might fix the problem, but only temporarily.\n"}]}
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