I finally reached Sorna Marshes yesterday, and I’ve received nothing but Irritator Gen 2 DNA from the incubators there, with the second common either Stego or Veloci. Previously, in Lockdown, I had the exact same problem.
Why am I not getting Allosaurus DNA instead, like the arena shows? Even if it’s only a chance, I’ve consistently received Irritator Gen 2 in two different arenas. This happens with all the incubators.