Message bubble color still default after applying theme on Galaxy S7 active

Since my phone updated yesterday, I have not been able to get the text message bubble's color to change even after applying new themes. This has been frustrating, because the color makes it hard to read the messages due to the font color from the themes. I tried restarting my phone and reapplying the theme, but nothing has worked yet. Any suggestions other than switching to a third party app?

I am having the same problem, I updated this morning and now all my received messages are white on white with no option to adjust or change text or bubble color anywhere. I have tried new themes, icons, wallpapers etc and nothing gets it to change. The option to modify text colors and bubble colors seems to have been deleted/removed. NOT HAPPY about not being able to read what i'm being sent. Im sure like most others I use my phone for work and this has put a severe thorn in my day. :mad::mad::mad::mad::mad: