Problem adding Hank 4 button scene selector HKZW-SCN04

[nschoot]

Version: 4.9999
Platform: Rasp Pi 3
Hardware: Aeonstick + Hank HKZW-SCN04

This device model was reported to be working by others. It should add four buttons, but something goes wrong in the inclusion. The include procedure takes longer than other devices... but it does complete in the end. I am missing configuration options and devices though:

This is what the log says:

2018-09-09 23:08:29.926 Status: OpenZWave: New Node added. HomeID: 3808364258, NodeID: 22 (0x16)
2018-09-09 23:08:29.927 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: CENTRAL SCENE, Label: Scene Count, Instance: 0
2018-09-09 23:08:29.927 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: CENTRAL SCENE, Label: Scene KeyAttribute, Instance: 1
2018-09-09 23:08:29.927 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: CENTRAL SCENE, Label: Scene ID, Instance: 2
2018-09-09 23:08:29.927 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: CENTRAL SCENE, Label: Scene Number, Instance: 128
2018-09-09 23:08:29.927 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: CENTRAL SCENE, Label: Button, Instance: 3
2018-09-09 23:08:29.928 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: CENTRAL SCENE, Label: Scenes Identical, Instance: 4
2018-09-09 23:08:29.928 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: BATTERY, Label: Battery Level, Instance: 1
2018-09-09 23:08:29.929 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: SWITCH MULTILEVEL, Label: Level, Instance: 1
2018-09-09 23:08:29.933 (AeonStick) Light/Switch (Level)
2018-09-09 23:08:29.934 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: SWITCH MULTILEVEL, Label: Bright, Instance: 1
2018-09-09 23:08:29.934 OpenZWave: Value_Added: Node: 22 (0x16), CommandClass: SWITCH MULTILEVEL, Label: Dim, Instance: 1
....
2018-09-09 23:08:32.940 Status: OpenZWave: Received timeout notification from HomeID: 3808364258, NodeID: 22 (0x16)

In the end, only one switch devices is added... which does not work... the log shows 0 times going to ON.

What can I try next? Any help appreciated.