[Tilesathome] Grey Tiles

[Ed Loach]

I've not been looking at the map much this weekend, but have noticed
a number of these squares this morning (not always grey - sometimes
they're blue). I managed to request rerenders of all the local ones
which did fix them, but then two broke again when rerendering based
on the scheduled change tiles task (I'm guessing) as they were the
two I made changes in earlier this morning. So I'm re-requesting
those two again.

Ed