Distorted file between library and develop modules
LR Classic CC Version 7.5
Mac OS Sierra Version 10.12.6
Nikon D750, Tamron 15-30 mm
SD card (new and formatted in camera) SanDisk Extreme Plus 32 gb
I was trying out my new lens this morning and I uploaded the photos into LR using a card reader. I cropped one of the photos and noticed a red streak along the bottom while in the develop module. I then moved to the library module and the red streak was gone. None of the other photos from the group had this issue. I have also been able to load the same files into LR CC with no issues - iPad Pro with Lightroom CC Version 3.4.0 via a card reader.
I also noticed from photos taken a few nights ago, different lens and SD card bad distortion (pink, white, red) in a different location (right side of photo) after I uploaded them into LR. I saw no issues while taking the photos - back of camera view looked good. I also uploaded the same photos into Lightroom CC with no issues.
It does not appear to be a SD card or camera issue.
What could be causing this issue in LR Classic CC?

