Symptoms

Some characters are used in the wiki markup body making them unusable by default. Using these characters in your pages doesn't work. If you try:

 \*.*

OR

\_A.

it won't render, it will be shown as:

*.*

OR

_A.

The "\" will escape the "*" the double backslash will break the line (confluence does not use \n to break line) and escape the underline "_".

Cause

Confluence uses these characters to render its own content.

Resolution

This is a limitation of the editor. Please refer CONFSERVER-2494. You can use {code} as a workaround.

{code}
*.*
{code}