For some reason I cannot enable the "Store my files on the WPMU DEV CDN" setting in Hummingbird. I set the switch to enabled and save, and then it reverts back to disabled. There is no error message. I've tried logging out, back in, clearing cache etc. I've tried disabling the "switch" style to a standard checkbox, and to no avail, I cannot save the setting.
Is there something I'm missing?
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