In the last few days my person/group picker control does not render at all on an existing for OR if I attempt to insert it in a new form. It appears as a broken image link might (See image 1) however it does insert a corresponding group and relative fields in the Fields area.
Internally we are on a crusade to secure our systems and patch them quite frequently. Evidently something has broken this control or it's dependencies but I have no idea where to start.
I did look at this information ( People Picker field embedded in Office documents does not show "Add People" dialog box ) however I'm not sure if this is even relative to the issue if the control doesn't render.
If I right-click on where the control should be in the form it does display a people picker dialog however the dialog only contains three tabs - Data, Size, Advanced - and is missing the SharePoint Server and General tabs.
If anyone can shed any light on this issue or a fix, it would be much appreciated.
Thanks