That did it. Thank you so much.You can try what I posted here, it has worked for a lot of people.
TL;DR, make a copy of 'xinput1_3.dll' you find in 'C:\Windows\System32' and rename it to 'xinput1_4.dll'.
You can either leave it in the System32 folder, or put it next to WildLifeC.exe (or WildLifeC-Win64-Shipping.exe).
That's a good question.