Generally, you should include:
What went wrong?
Doing empowered monos, after beating the quest echo boss, loot does not spawn for the rest of the play session (including for that boss). Pressing X to disable loot filter, and also unselecting the loot filter does not work. One or both of the log files should have the issue.
Log File
Player.log (1.1 MB)
Player-prev.log (982.7 KB)
Screenshots (via a site like imgur) or video, if applicable
Some screenshots https://imgur.com/a/DQdURsp
Thanks!