Cortana reminders not working??

[WPCentral Question]

So when I first upgraded to windows 10 I couldn't get reminders to work. I changed my time zone to US (I live in UK) and then they worked. I changed my time zone back and the still worked even though they were back on UK time. But now all of a sudden the reminders no longer work. I say what the reminder is and what time but when I press OK to set the reminder Cortana says she had an error setting my reminder?Now I can't set reminders on any time zone??? Please help