hy, for me it is the same .. i am using an old 2.1.2 server AND a new 2.8.1 server
The same agent (2.0.5) will report username to server 2.1.2 .. but if i change the dns to target the new server version 2.8.1 ....90 % of all agents also report the username to 2.8.1 .. but the username did not show up on all computers in the new server. The same client computer definitely reports the username to server 2.1.2
Perhaps there is something like an "active" user .. and the last user which was logged on on a specific computer.
OCS-Inventory 2.1.2 does not made any differentiation .. and i don't know if server 2.8.1 has the possibility to differentiate between .. currently logged on user .. and the last user which was logged on.
But because i only have 2.0.5 as agent .. i think this agent also isn't able to send different user types (currently logged on and last user)
I only send you the tip to search for the user .. to pinpoint the "bug"