\uD83E\uDD14 Problem
While Sending manual emails the attachment button disappears or simply doesn’t work.
\uD83C\uDF31 Solution
The easiest workaround for this issue is changing the “Email Editor” to “Email This Issue Rich Text Editor” in the General Configuration of the app.
If the provided workaround is not suitable for you, you can vote for this feature’s implementation on our ideabox: https://ideabox.meta-inf.hu/email-this-issue/view/3/issue/72627