In the last day I've seen quite a few images that throw errors when trying to view them (for example, [1]). Already-existing thumbnails work, but when one tries to force rendering new sizes, the server throw an error message: "Error! Our servers are currently experiencing technical difficulties".
Is this a know issue? It doesn't seemn to be anything wrong with the images themselves, because they were previously used in articles.
Strainu
[1] https://ro.wikipedia.org/wiki/Fi%C8%99ier:Cele_mai_%C3%AEnalte_cl%C4%83diri_...