Clearing Cache Breaks Image References

I have noticed something unusual happening after I clear my local cache on my PDM system.

All of our FM files are saved on our SolidWorks PDM system, and we are encouraged by our IT department to clear out our caches regularly. 
After a recent cache cleanout, I opened up all the FM files associated with a book that contains nearly one hundred images, all of which are also saved in the same PDM system. Once opened, every image appeared as a gray box. However, the file path shown on each image’s object properties was still intact and valid. Curiously, when I opened up the image from file explorer and clicked back into FrameMaker, the image would change from the gray box to its proper appearance.
While we were discussing this issue, my coworker also cleared out his cache. The same issue happened with him.

Is there a quicker way to resolve this issue than opening up each image individually?