i have been using Lr for years. No recent changes to my preferences on Lr4.4 or my MacBookPro. When i tried to import RAW while traveling in Vietnam, i receive this error message
"some import operations were not performed"
then there is a list of my import files with the comment "the following files were not imported because they could not be read"
yet i have been importing RAW files from this camera (Canon D5II) for several years.
Thanks in advance for your help
"Could not be read" means that the destination directory, where the photos are supposed to be copied into, does not have WRITE permission.
Change your permissions on that folder.