'some' TIFs appearing as 'X' in DPP, other TIFs display correct thumbnail. Why??

Does anyone know why some of my TIFs appear as an 'x' in DPP 3.0.1.5 and others show correctly, and any advise on how to fix this?

see below:

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Can you open them ok? - they may be corrupt...

ooops, sorry, i should have added more detail. I can open the TIF in Irfan View and WinFax view, LR and PS3 perfectly... I also saved it as a JPG in PS3 and even that opens in DPP... It is the horse photo below, but the TIF does not show, but other TIFs do show....

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Not come across this myself with a tif file, I have had a couple of corrupt jpegs in the past though.
Can you open the 'faulty' tif file and save it as another tif, is this then readable in DPP?

kevin_c wrote in post #3468062
Not come across this myself with a tif file, I have had a couple of corrupt jpegs in the past though.
Can you open the 'faulty' tif file and save it as another tif, is this then readable in DPP?

I tried this also. It fails to show it DPP when i 're-save' the TIF. I do not think it is a faulty TIF. I recall someone talking about ICC Prifles when saving, or IPTC and how this may affect some images shown in DPP but I cannot see any options for the latter when I save the TIF is PS3, and do not have a good understanding of them...

To explain the generation of the TIF a bit better, I started in LightRoom with a CR2 > R/C > Edit in PS > did all my work > Save As > 'filename.tif'

Then I try to just look at the TIF in DPP and I get this big ugly 'x' (see first screen grab in thread number 1 above)

I just tried to replicate this with another CR2; started in LightRoom > RC > Edit in PS > did all my work > Save As > 'filename.tif'

But with this test I am able to see the TIF in DPP. My thoughts are now with your suggestion kevin_c, that the original TIF could be corrupted..

Does any one know if there is a limit on file size that DPP can thumbnail, as the TIF that dispalys as an 'x' is 57mb in size..?

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What if you do a 'save as' with the 'faulty' tif file, in other words save it with another name (don't just rename it) - can DPP see it now? - It may be the cache of DPP keeping the original filename labeled as unreadable

kevin_c wrote in post #3468283
What if you do a 'save as' with the 'faulty' tif file, in other words save it with another name (don't just rename it) - can DPP see it now? - It may be the cache of DPP keeping the original filename labeled as unreadable

i get this..... which kind of explains it .....

somehow the jpg I made from a 'save as' in PS works fine (luckily!...)

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Oh dear... I assume you still have the original RAW file so I'd convert another if I were you Although I'd still be tempted to rename it slightly to stop DPP's cache 'remembering' the original as faulty/corrupt.

yep, will give that a go.... i need to put my 'editing photos' hat on first

Could be the LZW-compression as well, I think DPP doesn't understand it. But I don't know whether you're using LZW when saving...

well, i am not sure if PS remembers what the TIF was saved as last time, but when I opened it in PS, and did 'save as' again, it presented the following:

(not sure if these are in mem. of PS though....)

for this particular image i am not too concerned now that I have a high quality JPEG, but I don't want this to happen again with future TIFs, I am not able to replicate issue though..

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