The Mark 3 camera need ACR 7.1 or above to read.
It's not that the raw files won't read, they are visible, it's the xmp - which previously read are now not recognized and all sliders zero'd out.
the XMP are the edits for the raw file and need at least ACR 7.1 to read.
Thanks! I do understand that, maybe I'm not being as clear as I think I am lol
The files read and were edited and complete in july. when I reopened them yesterday, the files did not showed the edits (the files are still reading)... instead all of the sliders were set back to zero. any thoughts as to why the files would reset themselves?
PS I have the most updated version of ACR 7.4
First check to make sure your view mode in ACR is set to Image Settings, not Camera Raw Defaults. This is accessible as the top item or three in the menu that comes up when you click the little threelines-arrow icon at the right of the tabs title bar, for example to the right of the word Basic.
Otherwise, did you switch your Camera Raw settings location to be the central database instead of XMP files and/or are you on a different computer that might have a different metadata storage location?
Open up one of the XMP files in a text editor, perhaps one that hasn’t had a picture opened for it, recently, yet, and see if you see any non-zero settings. Also take note of the last file creation time. This will help determine if the XMP files, themselves, have been written with ACR defaults or if they are just being ignored.
Also, check the date and timestamps of a CR2 and XMP file that hasn’t been opened, recently, and see if the XMP date/time is before the CR2 date/time. There has been a bug, not sure in LR or PS, where if the XMP file date is BEFORE the raw-file date, then the XMP is ignored so maybe that could be happening. If it is a LR bug, then have the files been edited in LR, which might have ignored the XMP files and the rewritten things with the LR default settings?
If no explanation can be found on your side, can you zip up a raw and its corresponding XMP, preferably one that’s not been looked at, recently, then put them online somewhere like http://www.dropbox.com/ and reply with the public download link, so others can take a look?
What version of Camera Raw are you using? ACXR 7.4 just came out this week.