Bridge Thumbnails partially sepia tinted

Hi,

I have noticed something strange lately, while digitising some old B&W negatives converted/inverted using Negative Lab Pro plugin for Lightroom.

When I open the frelevant folder in Bridge, only a relatively small portion of the thumbnails, when set at smaller display size, exhibit a light sepia tint, which goes away if I set the thumbnails size to a larger size, as illustrated in the two screenshots here under.

No issues with the same thumbnails in LR. And no issues in Bridge with images either from color negatives or any other digital images.

Of course it is not much of a big deal. However, it is still annoying and would like to solve it.

Thanks in advance!
Nic