IOS mail and heading behavior, is this a bug?

iOS & iPadOS

Hi all. I was browsing a mail message on my phone this morning. The message is marked up by heading. Every time I read a heading, if I swiped right to read something about it, the app would go back into the default actions. Drives me crazy. Is this a bug or is this normal? If it's normal, they need to fix it. By default, I mean it would say actions like trash, read, flag things like that.