Logo in sheet format hidden

Hi.

I have a sheet format which I have been using for about 6 months and it has a jpeg of our company logo in the title block. For some reason unknown to me, the logo has started disappearing when I start a new drawing using this sheet format.

I haven't moved the file, it's not set to transparent, I didn't pour coffee on my pc. It has just decided to stop showing the picture... it's still there, but I can't see it and it doesn't show up on pdf's or in print preview.

Any suggestions?

SolidworksDrawings And Detailing