New Post: SP3 (for SharePoint 2010) broke my SPCascadeDropdowns

I think you may be running into this issue:
http://sympmarc.com/2014/01/23/office-365-update-changes-display-name-on-required-fields/

My guess is that the Category_ and/or Sub-Category_ columns may be required. It would be really helpful to me if you could post the markup from the browser for the column which is causing the problem. I thought that I had put a valid fix for SharePoint 2010 into 2014.01, but I've had a few reports of issues.

See:
https://spservices.codeplex.com/workitem/10256
https://spservices.codeplex.com/workitem/10250
https://spservices.codeplex.com/workitem/10231

M.