As I was looking through the asset in question, I saw this in the asset comments:
[MERGE] Removing duplicate asset with id 383 and unique 7C:5A:1C:D8:03:B4 while scanning XXX.XXX.XXX.1, writing to asset with id 382 and unique 7C:5A:1C:D8:85:A0 instead. Merged asset with asset unique 7C:5A:1C:D8:85:98 and MAC address 7C:5A:1C:D8:85:98 into asset 383 with asset unique 7C:5A:1C:D8:03:B4 and MAC address 7C:5A:1C:D8:03:B4.
If the two devices are seen as having clearly different MAC addresses and IP addresses, why would they be merged into a single asset by Lansweeper?