Same here! I'm not overseas, but am signed up for absentee ballots due to disability, and I didn't get anything either. I double checked on my state's voting portal and I'm still properly signed up and everything. I guess there was just nothing for me to vote on. Which feels very weird.
I hope everything is all correct with your information and you get a ballot properly next time! Thanks for opting in in the first place and for checking to make sure it's still set up right - thanks for voting!