🚀 go-pugleaf

I recently got the following message when trying to save some files on the network:
"An internal error occurred while writing imported graphics in this document. The file has been saved, but has lost some image data. Please report this error to Adobe Technical Support."

I had never seen this error before. When I try to update the book, I get the following error:
"Cannot save one or more files in the book. Open each file on the desktop. Check the permissions of the file on the disk, and then save the file manually."

This was never a problem before--this occurred all of a sudden. I checked the permissions and it hasn't changed. When I work on the book files locally, I can save the files just fine. I only get the errors when the files are on the network.

Any suggestions?

Thanks in advance,
Michelle