Autopilot v2 stopped adding devices to the group from profile

Hello,

I have a problem with Autopilotv2. Everything worked fine up until few weeks ago when Autopilot stopped adding prepared devices to the device group specified in Device Preparation Policy. I have reviewed diagnostics logs from affected endpoints, but deployment status is showing Success. No traces of any problem. In Intune logs, deployment is also completed with a Success. I have checked audit logs to see if there is a failed attempt to add device to the group (to rule out permissions issue), but there isn't any. I have created completely new device preparation policy and configured new device group, but it's same. In both groups, owner is configured as f1346770-5b25-470b-88bd-d5744ab7952c.

Also, I have just noticed in Monitoring logs, even though assignment have been removed from the old Device Preparation Policy and priority changed to lower than the new policy, when I start autopilot on my test device, it's getting old deployment policy assigned. Tried it twice and still getting old policy. I'm confused.