Bug reintroduced? Updating a single-value category via API

[manidu]

Hello,

as the original thread is quite old, I'm creating a new one and referencing to the original issue here: Update a single-value category with Api

In that thread, the solution was to update the API add-on from 1.10.4 to 1.11.1, as the bug was apparently fixed there.

However, using the current add-on version 1.12.3, the same problem happens to me. Upon trying to set the primary host of a virtual machine running in a specific cluster, I get the response that the given id does not exist in the dialog table. I have triple-checked that a) the given host is actually a member of the given cluster, b) the id of the cluster is correct, and c) the id of the host is correct:

{
    "version": "2.0",
    "method": "cmdb.category.save",
    "params": {
        "object": 100894,
        "data": {
            "hosts": 12923,
            "primary": 13795
        },
        "category": "C__CATG__VIRTUAL_MACHINE",
        "apikey": "xxx",
        "language": "en"
    },
    "id": 6
}

Any suggestions?

Best regards,
Manuel