I had the same problem see Are there any years old unfixed bugs (that are not a feature) left in EVE? - #9 by Vokan_Narkar issue 6.
For me, I had to wait for DT, then it got fixed. I also now think I know what caused it - it was Expert Systems that I activated few days ago to clear it from redeem queve and it probably expired that day. In a case you also used Expert Systems, maybe we have a repro and maybe, just maybe the issue could fixed.