As has been noted AJ Styles and Omos haven’t been seen on WWE television since they defeated The New Day to win the Raw Tag Team Titles at WrestleMania 37. 

They duo appeared on today’s episode of The Bump and Styles said they had been partying in Nigeria

"We’ll be back next week and ready to party. In the ring. Not in Nigeria" said Styles.

Fightful is reporting that at least one of them "wasn’t cleared" after WrestleMania and this is why they have been off WWE television.