weird and frustrating LR problem

[DanK]

I just encountered a problem I have never before encountered in Lightroom. If anyone has a suggestion, I would be eager to hear.

First, both my Lightroom and my Photoshop CC are the most recent version.

Here is the workflow that caused the problem:

1. images very slightly edited in LR--white balance, and for one set, a minor exposure adjustment.
2. Exported as 16 bit TIFFs
3. Stacked in Zerene
4. Reimported into LR as 16-bit TIFFS
5. Edited slightly in LR--I think only an exposure adjustment in the case of the image that had a problem
6. Move to photoshop using the Edit-In command in LR
7. Only two adjustments in PS: a curves adjustment (luminance blending mode) and smart sharpening.
8. Saved as both PSD and TIFF, layers left, maximize compatibility on. I originally did PSD, but I went back and saved as TIFF to see if that was the problem. It wasn't.
9. Reimported into LR.

None of this is novel for me. I have been doing this stuff with minor modifications for years.

Now, I looked at the images from step 9 in library mode. they were completely fine. Then I switched to the develop module. Immediately, the image showed a blue halo, and a previously completely black background showed blue speckles:



I switched back to the library module, and the images were fine, as they were in PS.

Finally, I exported a jpeg to the hard drive, and it looked OK.

So, as far as I can tell so far, this is a problem displaying in the LR develop module images that have been edited in PS and that are saved with layers in maximize compatibility mode. I don't know what other display errors have been introduced other than the one I noticed, so I reluctant to edit from that view.

Anyone else experience anything like this?

Thanks

[Black Pearl]

You have the left arrow on the Histogram switched to highlight (in blue) any areas that are clipping and going solid black. Click the arrow again to turn it off.

[DanK]

Wow, that was a dumb oversight on my part. I normally look at that. Many thanks.