Setting Primary IP does not work

[patschi]

I have some odd behavior where the sync script is not properly setting the Primary IP on almost half of the VMs existent in netbox. The output seems to be fine:

$ /opt/netbox-vmware-sync/.venv/bin/python3 /opt/netbox-vmware-sync/netbox-sync.py --config /opt/netbox-vmware-sync/settings.ini
2024-11-16 23:40:02,800 - INFO: Starting NetBox Sync v1.7.0 (2024-10-21)
2024-11-16 23:40:02,846 - INFO: Successfully connected to NetBox '127.0.0.1'
2024-11-16 23:40:02,846 - INFO: Initializing sources
2024-11-16 23:40:02,916 - INFO: Successfully connected to vCenter SDK 'vc1'
2024-11-16 23:40:02,998 - INFO: Successfully connected to vCenter API 'vc1'
2024-11-16 23:40:03,238 - INFO: Successfully connected to vCenter SDK 'vc2'
2024-11-16 23:40:03,352 - INFO: Successfully connected to vCenter API 'vc2'
2024-11-16 23:40:03,352 - INFO: Querying necessary objects from NetBox. This might take a while.
2024-11-16 23:40:08,920 - INFO: Finished querying necessary objects from NetBox
2024-11-16 23:40:08,943 - INFO: Query data from vCenter: 'vc1'
2024-11-16 23:40:29,100 - INFO: Parsing objects which were marked to be reevaluated
2024-11-16 23:40:29,100 - INFO: Query data from vCenter: 'vc2'
2024-11-16 23:41:14,147 - INFO: Parsing objects which were marked to be reevaluated
2024-11-16 23:41:14,221 - INFO: Updating changed data in NetBox
2024-11-16 23:41:14,273 - INFO: Pruning orphaned data in NetBox
2024-11-16 23:41:14,356 - INFO: Completed NetBox Sync in 1 minute, 11 seconds

I have cleared cache/ folder, just to rule out the cache messing up things.

In the settings, I do have configured the setting set_primary_ip to always:

; define how the primary IPs should be set
; possible values:
;
;   always:     will remove primary IP from the object where this address is
;               currently set as primary and moves it to new object
;
;   when-undefined:
;               only sets primary IP if undefined, will cause ERRORs if same IP is
;               assigned more then once to different hosts and IP is set as the
;               objects primary IP
;
;   never:      don't set any primary IPs, will cause the same ERRORs
;               as "when-undefined"
;set_primary_ip = when-undefined
set_primary_ip = always

On both vCenters:

$ grep "^set_primary_ip" settings.ini
set_primary_ip = always
set_primary_ip = always

But still, I do have 37 VMs without a Primary IP set:

Any ideas?