What steps will reproduce the problem?

1. Just attempt to log any world boss on a PVP realm

What version of Transcriptor are you using?

7.3.1-2

Do you have an error log of what happened?

No error, just a log that is full of player spells, and entire TIMERS section has more pvp data than boss data.

Please provide any additional information below. (example: localization of your client if not enUS or enGB)

I thought you already added a bit.band check for player unit to just filter all player events, but maybe you only did it in raids? World bosses matter too though and on PVP realms you get a lot of junk in your logs

This will never be fixed until combat log flags themselves are fixed.