After you file

I filed 2/24 and was accepted the same day. On 3/26 got and completed identity verification. On 5/16 got a "60 day additional review' letter (cp05).

It said my refund is on hold but "no action needed at this time". I'm still waiting. No updates. No changes to WMR. No changes to my tax transcripts. I claimed the child tax credit for my 3 kids. Used TurboTax and the refund advance. Idk what's going on. I've been using turbo tax for the past 5 years. First time this has happened. I'm losing my mind.