functionality: Sitelinks turn to red (UI is not handling server side responses)

I'm not sure what triggered it, but all the sitelinks turned to red.
I created an estimate with Chrome, and open from FireFox, it's red.
I opened the estimate I created in FireFox (in red) and opened in Chrome, and it looks fine.
It's a minor one but I guess it's some kind of bug, so I thought I should report it anyway.
The attached screen shots are example of the same order, one looks fine in Chrome and one in red in FireFox.

Thanks!