Hi, indeed, I have version 1.2.0 of sh5 and version 2.2.5 of the wolfes of steel. I am on windows 10 64-bit. I already experiment a little this mod, it seems to work. This is the only bug I have noticed.
Regarding the installation procedure, I followed the tutorial via the following youtube video:
but the only anomaly I had during this installation is at the "generic mod enables" level where I did not have "the wolves of steel" in the "activate mod" section.
Here is more information