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| p.1 #2 · p.1 #2 · Lightroom changes my white balance when exporting as JPEG |
White balance should not change and I have not heard of any LR bugs that would cause that.
What is more likely is that you are seeing shifts due to different colorspaces being used or perhaps the way you are viewing the images (color-managed browser vs. non-color-managed browser).
For editing, LR uses a wide-gamut colorspace that is a variation of ProPhoto. When you export, you can specify whatever colorspace you want - sRGB being the most common and recommended for web viewing, AdobeRGB and ProPhoto being reserved usually for inkjet prints. These conversions can produce some changes in color, saturation, and tone although they should not normally appear as a change in white balance (just more saturation in certain colors or perhaps more faithful interpretation of certain hues).
If you are exporting with a non-srgb colorspace, however, and not embedding the colorspace inside the image or you are using a non-color-managed browser or application to view those files, there can be a definite shift in color and saturation that you might interpret as a different white balance.
Check which colorspace you are using on export, check to see if the color space is being embedded into the exported file, and let us know what browser or application you are using to view the files after export.
Posting some examples might be helpful, too.