Can't find DatapointConfig - homegear / homematic binding

Hi there,

I installed openhab and the homegear binding.
I installed three components and two work properly, one device does not work.
I paired them using homegear

**(Family)> peers list
         ID │ Name                      │  Address │ Serial Number │ Type │ Type String               │ Firmware │ Config Pending │ Unreach │ Low Bat
────────────┼───────────────────────────┼──────────┼───────────────┼──────┼───────────────────────────┼──────────┼────────────────┼─────────┼────────
            │                           │          │               │      │                           │          │                │         │
          1 │ OG_LICHT_BUERO            │   51FF7E │    NEQ1551xxx │ 0069 │           HM-LC-Sw1PBU-FM │      2.8 │             No │      No │      No
          2 │ EG_STROM_TV               │   521D31 │    NEQ1559xxx │ 00D7 │      HM-ES-PMSw1-Pl-DN-R1 │      2.5 │             No │      No │      No
          3 │ EG_LICHT_KUECHE           │   51FF86 │    NEQ1551xxx │ 0069 │           HM-LC-Sw1PBU-FM │      2.8 │             No │      No │      No
────────────┴───────────────────────────┴──────────┴───────────────┴──────┴───────────────────────────┴──────────┴────────────────┴─────────┴────────

This is the way I included the switches in openhab items file:

Group gruppeAlles
Group test 				(gruppeAlles)

(...)

Switch	eg_licht_kueche 				"Küche"							(test)	{homematic="address=NEQ155xxxx, channel=1, parameter=STATE"}
Switch	og_licht_buero 					"Büro"							(test)	{homematic="address=NEQ155xxxx, channel=1, parameter=STATE"}

og_licht_buero works fine
eg_licht_kueche does not work.

Extracts from the logfile:

==> /var/log/openhab/events.log <==
2016-12-14 10:21:13 - eg_licht_kueche received command ON

==> /var/log/openhab/openhab.log <==
2016-12-14 10:21:13.612 [WARN ] [.b.h.i.c.HomematicCommunicator] - Can't find DatapointConfig[address=NEQ155xxxx,channel=1,parameter=STATE], value is not published to Homematic server!

==> /var/log/openhab/2016_12_14.request.log <==
192.168.188.28 -  -  [14/Dez/2016:09:21:13 +0000] "GET /CMD?eg_licht_kueche=TOGGLE&__async=true&__source=wa0000 HTTP/1.1" 200 13
192.168.188.28 -  -  [14/Dez/2016:09:21:07 +0000] "GET /openhab.app?sitemap=Haus&sitemap=Haus&w=0000&poll=true&__async=true&__source=wa0000 HTTP/1.1" 200 1716
192.168.188.28 -  -  [14/Dez/2016:09:21:14 +0000] "GET /images/switch-on.png HTTP/1.1" 304 0

State is not updated correctly. In the WebUI the switch is marked as ON but there is no signal sent via homegear (no log entries). So I do not think that it’s a problem with the component as pairing worked fine and the other components also work fine.

Do you have any hints for my how to get the component work? I Cannot see any differences between the to lines (except the name and the address).

Problem solved - restarting all services worked.
Is a restart always necessary when new devices were defined?