Previously done tasks, showing as not done
Today, Jan 6, some of my previously done tasks are showing up again as not done - for example tasks from 13 days ago. This is on the desktop via the browser. The iPhone app is showing overdue tasks correctly.
Using Safari 6.0.5 on a MacBook Air running 10.8.4.
If you sign out, clear the cache for Safari, and sign back into your account, does the issue persist?
Logging out, and then logging back in has resolved the problem. I didn't clear my cache.