Twinmotion color match using rgb code doesnt seem to work


I noticed someone also had an issue similar but not sure if the bug was resolved
https://twinmotionhelp.epicgames.com/s/question/0D7QP000001cVa50AE/detail?language=en_US

Trying to match a color using the rgb code that doesnt seem to work?

Any recommendations?

I did post on another segment. hoping to hear something or is there a tech support I might discuss this with? thanks for any help.

Billy