BUG? Can't use event entity in mail template

[emillod]

Hello
I don't know why, but i can't use entity(event type) in window where i'm writing e-mail.
I can use them in template to create template, but after that when I'm creating e-mail i can't choose them in assign entity in e-mail window, so i can't use template after all.
I don't have any entity in event type on this link in e-mail writing window.

[tanya]

Hello
Could you attach screenshots, please?