I feel like I have the same issue on Fjordur. I have been all over the map atleast 10 times and i've reset the wild dinos several times already. My mod has the latest version but I still can't find any wild indoraptors or indominus rexes.

I have the same problem on the Caballus map mod. The Indominus and Indoraptor don't spawn in the wild. I used the respawn codes, killed them to see if they would respawn naturally, and nothing happened. I also flew over the map about 20 times and there are no signs of them. I unsubscribed and resubscribed to the mod and nothing happened. I killed all the dinosaurs 30 times and they still don't respawn. If anyone knows how to make them respawn naturally, please reply to this comment. Thank you.

I've found an Male Level 20 Indoraptor in Chalk Hills on Valguero.
So they do spawn but are EXTREMELY rare since this Indoraptor was the ONLY one I found in Valguero.

This indoraptor also happened to spawn in a long circle of groups with 6 deinotherium's.

Try this if you haven't already, hope it helps! On your GameUserSettings.ini


[MoroIndomMod]
DisableIndoSpawns=False