reality composer results not white

Hi,
I have a problem with reality composer. Everything's works fine but when I look at the AR-result in a browser white objects look yellowish/greyish. This is particularly noticeable when viewed in AR on a background with white walls.
This also happens with objects (white cubes) that I create in reality composer.
Is this done intentionally to contrast with white backgrounds?
Or am I doing something wrong?
Does anyone have a solution to the problem?

Thanks
reality composer results not white
 
 
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