Images in the FLIR Tools Library sometimes appear with a circle with a line through them, and cannot be edited:
This happens because FLIR Tools can no longer find the images in their original location on the PC. There are a few different solutions, depending on the root cause.
You can view the folder locations that FLIR Tools is indexing by going to Options and then Library:
If the images have been moved to a different folder, then you will either need to move them back into the Library folder (shown above) or add the new folder to the Library using the Browse... button, so FLIR Tools can index it.
If a drive letter has changed (e.g., if you had images on a removable drive), you will have to remove the location with the old drive letter and then click the Browse... button to add the updated location.
If the images have been deleted and are in the Recycle Bin, right-click on the deleted images and select Restore: