When using the Glaive of Dreams artifact mod, swapping away from your equipped glaive causes the nightmare buff to drop to ~5 seconds. --- Steps to Reproduce 1. Equip the Glaive of Dreams mod on your arms 2. Have a glaive equipped and out 3. Pick up the nightmare buff by killing a powerful nightmare enemy 4. Swap away from your glaive to a different weapon --- The buff will suddenly drop in timer. I believe this is a bug because if you kill nightmares with a different weapon, you still get the extended duration, but if you swap to and away from your glaive it will also encounter the bug. The same is true for using super, and various other interactions that "put away" your glaive for animations.