When a MachineInventory re-registers the labels and annotations from the MachineRegistration are not synced to the MachineInventory.
On version 1.6.5 and SL-Micro 6.0 this can be reproduced by registering a machine and then changing the labels on the MachineRegistration and triggering a new registration.
The logs state we are sending annotations, but nothing is updated on the MachineInventory:

When a MachineInventory re-registers the labels and annotations from the MachineRegistration are not synced to the MachineInventory.
On version 1.6.5 and SL-Micro 6.0 this can be reproduced by registering a machine and then changing the labels on the MachineRegistration and triggering a new registration.
The logs state we are sending annotations, but nothing is updated on the MachineInventory: