@johan The results were not filtered on node_eui, latest packets from all nodes are showing. Previously the API when provided with node_eui would show all packets from that node, not all nodes and not only the last packet received.
This morning it looks like a filter is applied, however when requesting data for 02012902 I'm getting results for another node:
GET /api/v0/nodes/02012902/
...
"_id": "564593838620e1f37d0bbb2a",
"node_eui": "5A480107",
...