Maintenance for the week of October 7:
• PC/Mac: No maintenance – October 7
• Xbox: EU megaserver for maintenance – October 9, 2:00 UTC (October 8, 10:00PM EDT) - 16:00 UTC (12:00PM EDT)
The expert hunter buff particle effect needs to be toned down a bit.
I don't have a problem with it. In fact, I wish it was more prominent because it's difficult to see if it's still running with Critical Surge also going. Maybe it's a visual issue with your GPU/driver?