Ability use prevented after enemy Necramechs die

[PhoenixFieryn]

Happened to me a few times. Can't use ability and operator even after enemy Necramech dies. 

[Arkandae]

Got the same problem :

-usually happens when it dies in melee range (had no issues with octavia at ~10-15m, mallet range)
-after dying and reviving, I could use the abilities again but if I used transference, I was stuck in operator form until the operator "dies"