For Horizons players, Thargoid Basilisks, Medusas and Hydras were failing to spawn from Non-Human Signal Sources (threat 6+). This was hindering your progress with Anti-Xeno and Xeno research efforts.
Although some of you have already noticed, I wanted to formally confirm that we tracked down the cause and overnight propagated a fix which will now lure these Thargoid types out of hiding.
Encounters will now be made as intended.
Additionally related to Thargoid encounters in Horizons, you may now notice that Thargons will swarm in their correct numbers.
Take care out there!