I have downloaded the RTX texture packs from Nvidia as well as the 6 texture packs for each of the custom created RTX maps available through marketplace.

I then created a texture pack testing world so that I could easily view each texture in each pack and mix and match them to my liking.

I loaded up the flat world with the showcase texture pack on since it is the most completed.

Upon changing the active texture pack in the settings the world will not load up any other texture pack, even after closing and restarting the game.

Additionally I was unable to open any other texture pack in any other world, even a new one after this bug occurance.