[powerchaos]

try to use the following command to see if it still dissapear

i do not know what rn means in php ( only \n in php or br in html )

try to use this instead

ho\r\ned Rats

it is possible that a htlm filter is filtering the names RN , so with the backslash before it it get executed as normal and not as a command

i can not promise that it works , but you can try it
if it works , then we know that the html parser got somewhere a error that generate that certain error on your site

Greetings From PowerChaos