Local Profiles not unloading on latest version of FSLogix

Good Afternoon,

I've recently been troubleshooting an issue we have experienced running FSLogix 2210 hotfix 4 (2.9.8884.27471) with new teams on a Server 2019 image.

The behaviour observed was that after launching Teams, users local_username profiles would not detach from the server, and when that same user logs back into that server, there is a new temporary profile created with the format local_username1. These local profiles could not be deleted due to containing a file in use by SYSTEM.

After reading of the improvements with unloading local profiles with msix packages, I updated fslogix to the latest version FSLogix 25.02 (3.25.202.4223)

After this upgrade, we are still experiencing the same issues, where local profiles do not detach and write back to the primary profile VHD. 

We then tested the latest version of FSLogix on an older image, that still had classic teams installed. The same behaviour was seen where the local profile stays attached and does not write back to the main profile.

Are there any new configuration changes that I need to make in order to get this to work, or is anyone else experiencing this same issue?