I can not reproduce that so maybe a little more information or better still, post a typical image.
Image format - RGB/indexed,Greyscale - number of layers, a screenshot such as this often gives most info. https://i.imgur.com/BoaXCTb.jpg
As an alternative have you tried Colors -> Auto -> White Balance Of course depends on image but often works.
Image format - RGB/indexed,Greyscale - number of layers, a screenshot such as this often gives most info. https://i.imgur.com/BoaXCTb.jpg
As an alternative have you tried Colors -> Auto -> White Balance Of course depends on image but often works.