Actually, it seems like pretty much every page can be made to appear black on black. The first page in the list (as displayed in lukija) displays correctly, but all the rest are black.

I can "reset all" in lukija & delete it's sqlite database; then go to readitlaterlist.com and mark the top article as unread. Then back in lujika I resync, and now the first article displays fine (when the same article was previously second on the list it was black)

Sorry, not sure if that made sense
But basically I can make any article display fine or all black simply by changing the order of articles in my list.

[Edit]
This is an example of a page I've tried: http://www.guardian.co.uk/commentisf...ect?CMP=twt_fd (so, to confirm, it's visible fine if it's the first page in the list, black on black if the page is in any other position)