Substrate Material Issue in ThirdPerson Template

UE 5.5.4
Using the ThirdPerson Template with Substrate Material activated.
Using Substance Materials.

for some odd reason, the shadowing side seems off - appears a way too dark.
Can’t find out why.

See screenshot below:

Note:
appears in the viewport with Lumen the exact same way.

Any ideas what’s causing that issue?
thanks a bunch!