Amber simulacrum pet group run speed bug (pet is out of range of its group but still gets the minst/sorc run speed buff)
The 160% spirit spec run speed buff works whether the pet is in combat or not. What you are seeing here is a pet get snare nuked and 10s later when it comes out of combat, the pet gets a speed tick from its group members who are clearly out of range. The snare from the snare nuke is still on the pet; you can tell when the pet hits me that it once again is snared off.
1:06 - the pets get snared off with a 30s 40% run speed snare
1:18 - the pets get the group's run speed buff after coming out of combat while the group is nowhere close by.