OK. I think I know what the issue is. When the profiles were made, the camera model used was a bit older than the models mentioned above. The EXIF lens names recorded by that older model did not include the "III" for the extenders. I need to confirm that the extenders used were the Mark III versions (I think they were). Unfortunately, I am currently on business-related travel and do not have access to them until later next week. If I am correct, the fix will be to correct the lens names in the profiles (plus an alternate name for older models like the one used to make the calibration images). Short story, there likely will not be a fix until at least later this year due to scheduling restraints. Sorry I cannot be more specific. One way to workaround this for now is to take an image made with each of the extenders, manually select the correct profile in the Lens Corrections panel, and set a new Lens Profile Default. This will give Camera Raw a hint to automatically select the correct profile when encountering similar images with the same EXIF lens names. The defaults can later be reset/cleared once an official fix is available. Thanks for reporting this and thanks for your patience. Regards, - Chris
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