Cumulocity LoRa Downlink with Loriot Agent/Operations api

Product/components used and version/fix level:

Cumulocity Loriot Agent + Operations API

Detailed explanation of the problem:

Until shortly it was no problem to send Downlinks to Loriot LoRa devices using the operations API and the guide here: Loriot LoRa - Cumulocity IoT documentation
But now i get an error message.
There is no information what “Device reference is not found in managed object” is supposed to mean and how it can be fixed.

Error messages / full error message screenshot / log file:


Question related to a free trial, or to a production (customer) instance?

Production Instance.

The issue was that there was no c8y_LoriotProviderReference fragment created in the inventory.
I don’t know why this was the case but the issue has been resolved.