Jquery Datepicker stopped working in my production org

Just noticed something strange - the jquery datepicker is not working in my production org. 

Works fine on the same page in sandbox, but when I inline edit the date field in production, I just have an empty text box (although it does accept the input as a date). 

Anyone else experiencing this or know how to solve? 

Thanks. 

And suddenly it’s working again. 

Weird glitch in the matrix? Oh well. 

Maybe JQueryUI went loopy for a while. Cuz it most certainly wasn’t a problem with Skuid.  That NEVER happens.   (grin). 

Hope the matrix stays stable for you… 

So far so good. Weird thing. Serves me right for working on page layouts on a Saturday!