This is collection if Minecraft issues/bugs you may experience when using TAB, which are not TAB bugs and cannot be fixed with a plugin.

You may see unwanted space at the end of a line of text even if you didn't configure any. This is a client sided bug. To avoid it, add &r after ending bold segment (for example, prefix &4&lAdmin&r&6).

Using &m (strikethrough) and &n (underline) does not work in header, last line of the scoreboard and possibly other places (MC-180110).

Visual bug rendering chat over the tablist (MC-263256).