I duplicated seattle.master and added a couple of small things to it. Now I get the following most of the time when I attempt to add Apps:
90% of the time I see only the headers. 8% of the time I see the Noteworthy Apps and not the rest (though the "1-16 of 18" is showing at the bottom). And 2% of the time it works as expected.
I have seen the various threads that mention the following controls being in the master page and visible:
DeltaPlaceHolderLeftNavBar, PlaceHolderLeftNavBar, DeltaPlaceHolderPageTitleInTitleArea, and PlaceHolderPageTitleInTitleArea
All 4 of these are present and visible in my master page.
If I revert back to seattle.master it works without issue, so it must be related to the master page.
I made the following changes:
- styled the out-of-the-box navigation to display: none (to leave the control there)
- added a jquery navigation (removing it doesn't stop the error)
- added a custom stylesheet (removing it doesn't stop the error)
- turned the breadcrumbs back on (using: http://blog.amtopm.be/2013/01/04/sp2013-adding-breadcrumbs/)
Using Foundation so cannot use Server features.
Does anyone have any other thoughts on how to figure out what might be going on?