Mario, please don’t take this the wrong way; this is friend to friend.
If you feel you’re experiencing brain fog or sporadic lapses of short-term memory, do seek medical help. It may be as simple as your meds interacting.
You can’t say my Tacam “is not multi-client” and then immediately say “ALL interfaces are multi-client”. That’s just detached from reality on so many levels.
Again, this is friend to friend.