His mother lives in Las Vegas, and it appears he may be transferring due to a family hardship that will have him go to Las Vegas to be with his mom. I see it as a big possibility that he ends up at UNLV next season. Due to the hardship due to his mom and her health he would not need to sit out a season.
https://www.sltrib.com/sports/utah-utes/2019/06/07/utah-forward-donnie/
https://www.sltrib.com/sports/utah-utes/2019/06/07/utah-forward-donnie/