Not sure if this is a bug or me missing out on something, i just went to add someone to the notify list /notify +MidnightSabyl
but it only adds MidnightS when i check the list.

* Added +MidnightSabyl to notify list

I have no problems here on mIRC 6.16 - you do not need to specify the + symbol when adding someone to your notify list. I would suggest a script is interfering.

Regards,

Try /[color:red]!notify[/color] instead of /notify. If it works, then, as Mentality suggested, a custom alias is intefering.

To find out where in your Script Editor it is located, type //!echo -a $isalias(notify).fname

Thats true.
* Added +MidnightSabyl to notify list.

When i saw the list:
* Notify list:
MidnightSabyl

But there isnt IRCds with + in nicknames or exist?