I don't wanna make a new thread about this, but Amatsuka uto finally broke silence, and the reason why she took an unannounced hiatus is that she was busy for personal reasons. She also mentioned something about seiyuu work, so she might had landed a voice actor role in some anime or game.
https://mobile.twitter.com/amatsukauto/status/1497868324667297794>It's been a long time! !!>I'm sorry if the report was delayed and made me worried.>Due to personal reasons, delivery will be suspended for a while.sorry
>Behind the scenes, there are many things I would like to report to everyone, including the work of voice actors! !!>It would be great if you could wait a little longer!>thank you! !! 