Graphic missing in published file

A new problem popped up today. I'm using Lectora 2008. I was changing some graphics in a section of the course that had been working properly. Now, one of the graphics I added to replace another doesn't appear in the published html course. Oddly though, the needed graphic is in the images folder. When I look at the properties of the broken link, the path points right to the graphic in the images folder - but the graphic doesn't appear.Has anyone ever encountered this problem before? Any suggestions on what could be causing this problem.Thanks.

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