Describe the bug
Using the Extra Stuff -> Custom Filter inbound option and having Secondary Output option checked, the output produced will change the search Pattern to @##1##@, no matter what will be present in replacement text.

For instance having a custom filter on word 'int', receiving a message 'int me' will produce a secondary output '@##1##@ me'.

To Reproduce
Steps to reproduce the behavior:

1. Go to Prat Settings -> Extra Stuff -> Custom Filters -> Inbound. Add a new pattern for search pattern 'int' with "Secondary Output" checked, and secondary Output in raid warning. Replacement text can be empty/%1/int/anything.
2. Whisper yourself 'test int'
3. See error

Expected behavior
Message 'test int' popping in raid warning, instead of "test @##1##@"

Screenshots
https://imgur.com/a/2nEEnwF

Version Information (please complete the following information):

• Wow Version: current Classic 3.4.1
• Prat Version: 3.0.3.9.17

Addons you are running
Happens even if Prat is the only loaded addon.

I have the same issue on retail but not sure what's causing it.

This is fixed in the alphas and the main release. Closing.