I'm missing the chest at the end of the bed in my house, Hjerim.
I've saved after buying the house because I have never had problems with it before. But the chest is completely gone.

Any way to fix this? D: I bought all the upgrades.

[edit]
I did Blood on the Ice and 'investigated' every item in the house. I finished the quest and then didn't bother with Windhelm again until after I won the battle for the Imperial Legion.