In Filemaker Pro 13, why are images in container files prevented from loading when I drag down the side scroll bar? They don't load until I release the mouse button. I see a circular arrow in each container until I release the mouse button. This wasn't the case with earlier versions, where I could drag the side scroll bar up and down to see all of the images in their containers. If I click in the side scroll bar instead of dragging, the images load instantly. I only use container files to hold one image. I don't have container data stored externally. Also, when I paste an image into a container I see the arrow, albeit very briefly. Any help will be much appreciated.
MacBook Pro Retina 15" (mid-2014) 2.5 GHz Intel Core i7
OS X 10.11.6
Filemaker Pro 13
Memory: 16 GB
Graphics NVIDIA GeForce GT 750M 2048 MB