B1i 2.0 B1DI Adapter Atom configure value source via xpath

Dear Experts,
i want to configure the SLD ID of a B1DI atom with the value source "xpath".

But the xpath will not be resolved from B1i, it seems that this function does not work.

My B1i 2.0 Version: 2.0.3

Any ideas?

Thank you!

b1i20-sld-sourcevalue-xpath-b1di.png

Regards
Ronald