Lightroom Classic: Red and blue artifacts randomly appear on previews and exported photos

Hi,

 

we have been experiencing a weird issue since a month or so. some blue or red rectangle will show up in images randomly while we are browsing files in LR. When we can see them if we change photo and come back it will disappear. If they are present in a preview they will be exported and then in photoshop or any image viewer the rectangle will be present. They are not present on the original files.

 

This problem happens pretty much randomly and doesn't seem to be tied to any specific gear we use. We shoot with over a dozen different 7D and 7D MK II, the memory cards are all new and rotated, some photos are transferred by USB cable and some by card readers. The photos are first imported on at least 3 to 4 different computer. They are however calibrated and retouched on the same computer here at our HO. The Graphics Processor option is disabled in LR CC Classic.

 

Any idea how to fix this problem? We are currently managing 3000 to 9000 photos per week in LR and it is pretty troublesome right now.





Here are my system specs:


Windows 10 - Business Edition 64-bit v.10.0.17763

Lightroom CC Classic 64-bits v.8.0 Build 1193777

Intel i7-7700 3.6ghz processor

8gb RAM

HD Graphics 630 (24.20.100.6286)



 

Thank you