EN4 Robe iForte + Robe Base Station over DMX+RDM

According to the update description, from version 2.9.4 it should be possible to connect Robe Base Station with Robe Follows. I have now tried the following scenario:

  1. EN4 Arthnet Input Universe 1, RDM switched on in the settings, Robe Base Station connected.
  2. EN4 Arthnet Output Univerum 1, RDM switched on in the settings, Robe iForte LTX FS connected.
    The lamp cannot be controlled at all via this setup.

Attempt 2:

  1. EN4 sACN Input Univerum 1, RDM switched on in the settings, Robe base station connected.
  2. EN4 sACN Output Univerum 1, RDM switched on in the settings, Robe iForte LTX FS connected.
    Here I can control the lamp (as I have already recognized it once before via direct DMX connection in RDM Discovery)
    But when I run it again now, the iForte is no longer recognized.

The update notes say something about a direct Artnet connection, but I can’t find any settings that allow this in the web interface.
For the Luminex nodes I have to enter the IP address of the node to which the RDM feedback is to be sent (of course from the base station)

What else am I doing wrong that I can’t get it to work?