Resolume doesn´t find the Link Session

[AcdNrg]

Arena 7.5.0 on Win10x64

Traktor and Bitwig Studio running happily in sync, seeing 1 other member. Activated Link in Arena, but it does not join the group nor does it sync in any way.

Any idea what´s missing?

[AcdNrg]

- RESOLVED -

Dunno what I did, but a few restarts in different order made every program see the link session.