Steps to reproduce:

1. Create macro {$MAX_CAP} with value of "90%"
2. Create a trigger with a macro in the title ( ie "Fileystem above {$MAX_CAP} Used")
3. Ensure trigger is in a problem state
4. Select Monitoring -> Problems
5. Expand filter
6. Enter problem "Filesystem above 90% Used"
7. No results will be listed
8. Enter problem "Filesystem above {$MAX_CAP} Used"
9. Results will be listed

Expected:

I would have thought the end user would search on the expanded text as shown in the screen and not have to be aware of Problems that contain macros.