MainStage 4.3 forgets Text Box background color for lyrics

Hi guys, I am seeing some inconsistencies when I set the background colour of a Text Box that I am using to display Lyrics. MainStage 4.3 seems to be forgetting the background colour which is frustrating because the App is finicky and takes time to get it to change the background then my lyrics are not visible once it forgets that the background colour has been changed. It seems pretty random but I have found a workaround by Duplicating the Set then automagically my preferred background colour reappears. Then I just delete the original Set which had the corrupted Background Colour. Bizarre workaround but it works. Anyone got any ideas how to do this so MainStage is less flaky ?