Capture events for individual groups without a user

[christophdb]

I would like to "Capture events for individual groups without a user".

Regarding documentation, this should be possible: https://posthog.com/docs/product-analytics/group-analytics:

I tried this php code and it generates an event and in the raw data, I can see the assigned group:

But there is no such event in the group:

My assumption: I used "subscprition_change" as distinctId and this person is not part of the team.

Can anybody help me with this issue?
I also created a question for this but I thought, it might be better here as an issue:
https://posthog.com/questions/capture-events-for-individual-groups-without-a-user

Thank you.

PS: I just realised that the second screenshot is wrong. "test_x" vs "team_x". But also in the group "test_x", there is this event not visible.