Auto-Write XMP CONSTANTLY updates same files

Status
Not open for further replies.

eaglekepr

New Member
Joined
Nov 22, 2008
Messages
24
Thought I'd throw this one out there in case someone else has heard/seen it.

First off, I have Automatically Write XMP checked on (my computer has no performance issues with it :) ). When I start up LR, it seems as soon as it decides that it is idle, the background XMP writing cranks up. I let it in the past run over night to write out the XMP for all 44K photos in my catalog and naturally it took a while but now I think this might have been involved.

I have a set of photos that I just worked on, developed, tagged, title and captioned, and flagged as Picks. I left LR in the background while I surfed the web, and my external HD where my photos/XMP/catalog reside kept chugging away. When I went back into LR, my group of 9 photos were in Grid view with the "Flagged" filter active. The "Metadata Has Been Changed" down arrow in the corner of the thumbnail was rolling through the group in a constant loop of requiring a save, then auto-saving and so on. Looking at the Metadata Date in the Metadata panel with one of the photos selected, the Date/Time kept incrementing every second like it was a clock!

Unchecking Auto-Write stops the process naturally, and it doesn't start up if I re-check it. But if I close and reopen LR, it starts chugging away again. I made a copy of one XMP file that it auto-saved and compared it with another auto-saved a few minutes later. The content is identical between the two.... I can't find any differences.

And, as far as I can tell, there are no differences between this set of photos and any other flagged/devloped photos in my catalog.

Ok, just made some similar changes to another photo in a different folder, closed and reopened LR. The Auto-Write icon flashed once on that photo and that was it... but the drive is still chugging on those others.

Tried a different tactic. I did a Windows search for *.xmp in my photo folder updated today. It brings up those 9 photos and 8 others located in 3 different folders. Some more trial and error finds that unchecking and rechecking Auto-Write on updates the set of 8 once. The set of 9 are all sitting there with the metadata down-arrow displayed (again, this is with Auto-Write currently checked). If I select those 9, Ctrl+S to save the data, it starts chugging away again.

Whew. Anyone have any ideas? Again, there's nothing remarkable about these 17 photos, the only thing that I can think they have in common is that they've had develop changes (flags/ratings/metadata are all different).

Right now it seems the only way to keep it from constantly updating the set of 9 is to leave them sitting with metadata requiring an update. Not really a problem since I know it's up to date... just annoying to have my drive constantly spinning/writing when it's not needed.
 
An update:

I went through and selected all 17 photos with Quick Selection (B) to put them into their own collection for Export to Catalog. The "Group of 8" no longer do the single update when un/rechecking Auto-Write. The other 9 however still do. Exported all 17 + Negatives and previews to a new catalog. Open the catalog and same thing, the 8 act like normal photos, but the 9 still constantly update the XMP files.
 
That is the weirdest problem I've heard this year! What kind of files? Obviously raw. Which camera?

What happens if you delete the sidecar files or move them elsewhere, and then make an easily reversible change and try writing them xmp again.
 
Ok, deleted the sidecar XMP's (Auto-Write off). I made a Split-Tone change on all of them and the metadata arrow pops up. As soon as I Ctrl+S to save, the XMP's are made, the arrow disappears sequentially across the thumbnails and comes back up right after they disappear.

Here's the interesting bit. I made a copy of the raw files into a new folder and imported them. They act normal. I synchronized the metadata and develop settings with their original. Same thing, these act completely normal while the original versions keep updating. So it appears to be an issue with the original files themselves... and whatever that is, Lightroom copied the issue over when I exported them to this test catalog. Making a Windows Explorer copy un-does whatever is causing it. Bizarre...
 
Could be something in the catalog itself.

So a Windows Explorer copy is ok, right?

What about importing the original photos into a fresh catalog (at their existing location)? Does it still happen?
 
Well, that seemed to take care of it. I deleted the XMP's and started a new catalog, importing just those photos. No issues (other than they didn't have any metadata to update to my changes). Reopened the master catalog... and now they don't update! Bizarre situation to say the least. I agree, something in my master catalog was doing it, though I couldn't begin to say what. I had run a repair on it to get it to stop but no luck there.
 
Very bizarre.... but great to have it sorted!
 
Status
Not open for further replies.
Back
Top