messed up image preview

[timoteo]

scrolling through my images and came across two images with previews that looks scrambled. See attached screen capture. When I display the image in Windows Photo Viewer it looks OK. The version I have in C1 looks ok too.

I've found two different files like this.

[Mario]

Have you tried to force an update of the image with Shift+Ctrl+F5.

If this does not help, re-save the TIFF in your image editor.
There are many of TIFF variants in use, and the 3rd party image library IMatch users may not handle your image well.
Although I don't recall such a case having ever been reported. I have tons of TIFF files from all kinds of devices and color models in my test library.
Please send the to me via support email address (< 20 MB). Or upload it to your cloud space and send me a link.