I cannot reproduce the problem with the current tested version (r15629). I think this can be closed. This is what happens now:
2020-01-23 09:06:19.593 INFO: GET https://api.openstreetmap.org/api/0.6/node/637694461/ways -> HTTP_1 200 (659 B)
2020-01-23 09:06:19.603 INFO: Way 50163903 with 7 nodes is incomplete because at least one node was missing in the loaded data.
2020-01-23 09:06:19.603 INFO: Way 50163902 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-01-23 09:06:19.603 INFO: Way 48522817 with 15 nodes is incomplete because at least one node was missing in the loaded data.
2020-01-23 09:06:19.693 INFO: GET https://api.openstreetmap.org/api/0.6/node/637694461/relations -> HTTP_1 200 (380 B)
2020-01-23 09:06:19.763 INFO: GET https://api.openstreetmap.org/api/0.6/way/50163903/full -> HTTP_1 200
2020-01-23 09:06:19.833 INFO: GET https://api.openstreetmap.org/api/0.6/way/50163902/full -> HTTP_1 200
2020-01-23 09:06:19.903 INFO: GET https://api.openstreetmap.org/api/0.6/way/48522817/full -> HTTP_1 200
2020-01-23 09:06:19.973 INFO: GET https://api.openstreetmap.org/api/0.6/nodes?nodes=1403393527,1406496787,1797449460,1403393537,1408477674,1403466219,1403393530,1403393529 -> HTTP_1 200
