Multiuser...
...is buggy.

First of all, it's very important, that the logged-in user at onPC (you, the operator) is the same as the one BCF4MA2 logs in via telnet. Otherwise there will be some strange missyncs with faders and page-changes are not detected.
I did not read anything about that in TFM!!! But it's important because MA is a multiuser-desk and executors are not multiuser-parts but the BCF4MA2 depends on the same user.

Second I got some trouble when the user was changed after BCF4MA2 has connected. But this might be only my trouble as I got also the loopback/feedback-problem only myself and nobody else.

So, this is all still more testing than really solid. The version 3.1 is more a 0.3.1 for me.

But I still keep trying....

Gralf