[Observium] Issue with Didactum device (after firmwareupdate, generic device)

Hi

We are running Observium Professional r12000

Recently, we upgraded the firmware of one of our Didactum sensors and noticed, that after the firmware upgrade, Obersvium handled it as a generic device instead with all sensors beeing removed.

3d 16h 50m it-temp-002 https://observium.mpimf-heidelberg.mpg.de/device/device=214/ OS changed: didactum-ems -> generic

The sysObjectID is .1.3.6.1.4.1.46501 and according to the following ticket, it should be working from r11479 onwards

https://jira.observium.org/browse/OBS-3814

What are we doing wrong here?

Best,

Thomas