I have install the homematic binding together with homegear.
I can define the devices of homematic, all data from the homematic devices are resived from homegear, already update and displayed in OH2.
But if i like to switch a actor (HM-ES-PMSw1-PI) it not work.
My feeling is, that the switching command not send to homegear.
I have start the homematic binding in trace mode. I can't find a send command in the log.
For crosscheck I have install a openHAB 1.7 with the same configuration (items and sitemap).
On this installation it works fine.
A litte wondering for me is, that in 1.7 two package are necessary in OH2 only one.
Both installations run on a oracle java 1.8 environment.
OH2 on a RPI2, OH1.7 in a VirtulaBox with Debian.
The builds are OH2=Jenkins#248; OH1.7 stable from bintray.