Unkillable blight boss alive after blight is finished

Had a weird issue, was doing a blight inside a mirage area in Mesa map, finished the blight but a blight boss, Ephrexis Blight Strider stays alive and can't do damage to it.

And ever since it has been introduced blight will finish with sporeplume alive if you have killed his largest form.

Bug Report ID: #827,863,749

For me it is Scree, The Infected

Stays alive after the event is finished in Mirage.


EDIT: 22 March

Bug Report ID: #3,804,157,311

Sharnath is the immortal boss this time.

It is a pretty consistent bug in Mirage.

I also sometimes get my entire Blight encounter stuck because portals that spawn at the edges of Mirages can simply clip out of the interactable area (especially if near trees or some other environment elements) and "trap" the mobs there making the entire event bugged.