When you add a server to your server list and you want to remove a letter next to a . and another . looking like this .B. you will not be able to delete it. You need to remove the . to remove the letter.

Let's say I want to remove the middle.

Example.BugTest.net

I want to remove BugTest so I go between the t and the .

So I delete ugTest but the remaining thing would be B because it will be between a . and another .

Thats the bug