I don’t know if this was reported already, but it’s already a few patches that the 2 Indoraptors missing the typical “hissing” while in showcase screen, and this also applies in AR. I have a video in my phone dated on Summer where I “played” with the Indoraptor and the hissing is there. But if trying to record a new one it just doesn’t sound it. Only the OG Indoraptor does it a bit in the middle of animation 2.
On the bright side, they still does while in battle, either arena or raid.