Arbitration drones showing up in regular missions - is this normal?

https://preview.redd.it/llcy2270y9hf1.png?width=1911&format=png&auto=webp&s=7bfe957979039f0498e7481a203eed6f06bff39b

So ran a quick arbitration that was on the zariman (void armageddon so we all left after round 2 (void armageddon sucks)) and decided, hey since im here might as well run some bounties for the void plumes, now in the regular bounties arbitration drones are spawning, this was not the only one and not the only mission it spawned in (just the easiest one to screencap) has this been an issue before or a new bug or a feature even, whats going on !?