Unable to update NS record - "Name server update failed"

Hello,

I wanted to transfer 2 domains out of Route53. The process for the first one was seamless, all changes were propagated instantly. Minutes after I wanted to go through the entire process with the second domain. Sadly it's failing on AWS side. In Route53 dashboard I see a notification saying "Name server update failed".

I need to update NS records or I won't be able to transfer the domain. May I ask why is it failing?