If you access the datacrons and use the new navigation arrows and reroll stats, the visual ui reverts if you navigate away and come back. The cost display is reset. The stats are reset. If you try to reroll again, you are told the cost is what it was origianlly but it will take the amount that is appropriate. If you exit the datacron and go back in, the most recent selection will display. It seems to be a display issue but can mislead spending of materials.
https://youtu.be/C_KGaW3gjcU