Global Resource pack resets every time I exit out of the game

On Xbox One X every time I close the game the global resource pack that effects the main menu and store resets to the default version. I have to go into the settings and reapply the texture pack I'm using every time I start up the game. This happens for all the different resource packs I own, five in total. I mentioned this in a forum and one of the dev's said it's a bug and that it's supposed to stay whatever resource pack I apply until I change it. It shouldn't revert back to the default every time I exit the game. They gave me a link to this site and told me to report it as a bug.