For some reasons (not related to mods)
it seems there is no walking sounds for player and thralls, only jumping and landing does exist
Here how it looks:
Greetings @Lemur ,
Thank you for reporting this issue to us, but could you please use the given Bug Report Template?
This template has most of the information we need to start investigating and will make the process a lot quicker for everyone 
You can find it here: NEW Bug Report Template
If possible, please turn of the mods to see if it works, however if you’re still finding this issue send us a video without mods so we can verify and share it with the development team.
Thanks in advance!