iOS App SetPoint not changing

Hello community,

I already found this thread but I think my problem is a bit different.

I’m running OH2 2.0.0-1 installed from repo on a Raspberry. I access it through a reverse proxy to have user/pw authentication. When using a browser everything works fine. Same when using the android openhab app.

Nevertheless when using the iOS app I have the problem, that I can’t use the setpoint elements for my zwave thermostats.

I can see that the http request is received in the apache log. - username [18/Feb/2017:11:28:56 +0100] "POST /rest/items/node3_setpoint HTTP/1.1" 200 356 "-" "openHAB/ CFNetwork/758.5.3 Darwin/15.6.0"

The request is recognized by openhab, but the value doesn’t change. The value just doesn’t in-/decrease.
2017-02-18 11:39:31.432 [ItemCommandEvent ] - Item 'node3_setpoint' received command 19.0 2017-02-18 11:39:34.427 [ItemCommandEvent ] - Item 'node3_setpoint' received command 19.0 2017-02-18 11:39:36.379 [ItemCommandEvent ] - Item 'node3_setpoint' received command 19.0 2017-02-18 11:39:37.070 [ItemCommandEvent ] - Item 'node3_setpoint' received command 19.0

For comparison when using the android app:
2017-02-18 11:40:03.015 [ItemCommandEvent ] - Item 'node3_setpoint' received command 18.0 2017-02-18 11:40:03.021 [ItemStateChangedEvent ] - node3_setpoint changed from 17.0 to 18.0

The results are the same when connecting the app directly to the default port 8080 instead of the reverse proxy.

My sitemap looks as follows:
sitemap default label=“Home Sweet Home” {
Frame label=“Allgemein” {
Selection item=heating_scene label=“Heizung an?” mappings=[yes=“Ja”,no=“Nein”] icon=“heating”
Frame label=“Küche” {
Text item=node3_temperature label="Temperatur Ist [%.1f °C]"
Setpoint item=node3_setpoint minValue=“4” maxValue=“28” step=“1” label="Temperatur Soll [%.1f °C]"
Text item=node3_battery label=“Thermostat Batterie [%d %%]”
Frame label=“Bad” {
Text item=node7_temperature label="Temperatur Ist [%.1f °C]"
Setpoint item=node7_setpoint minValue=“4” maxValue=“28” step=“1” label="Temperatur Soll [%.1f °C]"
Text item=node7_battery label="Thermostat Batterie [%d %%]"
Text item=node2_battery label="Fensterkontakt Batterie [%d %%]"
Text item=node2_open label=“Fenster offen [%s]”

I would be grateful if you could help.

Thanks and regards.

Edit: I’m unable to format the sitemap correctly. Sorry for that…