Pink blocks saved on .jpgs in Photoshop and created in Bridge thumbnails
I am part of a team of 8 in a photographic lab that are experiencing saving errors when using .jpgs.
We are using Adobe Bridge CC 2019 and the thumbnails that it creates and shows on screen are often displaying pink shapes on the images. This was easily fixed by purging the cache for the selection in the context menu from within Bridge. (Shown below)

We didn't realise until later that many of our images that we are batch processing through Photoshop CC 2019 are also being SAVED with these pink shapes. We are only working in .jpg and never convert to or from any other file types. Our other processes require us to work in .jpg so no conversion can take place.
We are not dealing with particularly large files, approximately 6MP.
We are dealing with high quantities of images, approximately 100,000 images pass though our lab a week.
We are all running 64bit Windows 7
We all have up to date Creative Cloud
We all have up to date Photoshop CC 2019
We all have up to date Bridge CC 2019
We all have up to date Lightroom CC 2019
We have users with different subscription levels.
I can rule out hardware as they are using different spec machines.
I can also rule out enabling/disabling GPU, this has no effect.
I can also rule out Legacy_Compositing, from Photoshop as this too had no effect.
I can also rule out a camera issue, as these images do not show this issue from the camera.
I find it hard to believe we are the only ones having this issue, particularly as we have so many different users and machines all experiencing it.
