VRC470 settings from OH not reflected

Hi,
I’m looking for someone who can confirm his settings of heating water 470 (dhw.program_dhw_circuit.program) are working. In my case when I set the value from OH (I’m trying to change Auto=2 to anything, typically 0 or 1) are being accepted what I observe in the log but then immediately get overriden with what is set on the VRC470.
I’m getting an impression that there must be a logic/parameter which needs to be set upfront to allow changing values set in the 470 normally. Or am I saying complete non-sense? I don’t see any other explanation of the fact as debug show data to be set, then

017-08-03 17:29:39.785 [TRACE] [nal.connection.AbstractEBusConnector] - Auto-SYN byte received
2017-08-03 17:29:39.785 [TRACE] [inding.ebus.internal.utils.EBusUtils] - SC 99
2017-08-03 17:29:39.786 [TRACE] [inding.ebus.internal.utils.EBusUtils] - SC 99
2017-08-03 17:29:39.787 [DEBUG] [inding.ebus.internal.parser.Analyses] - FF 15 B5 09 04 0D 42 00 01 E5 00 01 02 99 00 AA
2017-08-03 17:29:39.787 [DEBUG] [inding.ebus.internal.parser.Analyses] - >>> DHW Operation mode
2017-08-03 17:29:39.788 [TRACE] [inding.ebus.internal.parser.Analyses] - >>> dhw.program_dhw_circuit.program 1 DHW Operation mode
2017-08-03 17:29:39.788 [TRACE] [inding.ebus.internal.parser.Analyses] - >>> On
2017-08-03 17:29:39.800 [TRACE] [onnection.AbstractEBusWriteConnector] - No access to ebus because the lock counter …
2017-08-03 17:29:39.800 [TRACE] [nal.connection.AbstractEBusConnector] - Telegram too small, skip! Buffer: 00 AA
2017-08-03 17:29:39.882 [TRACE] [inding.ebus.internal.utils.EBusUtils] - SD 01
2017-08-03 17:29:39.883 [TRACE] [inding.ebus.internal.utils.EBusUtils] - SC 9A
2017-08-03 17:29:39.884 [TRACE] [inding.ebus.internal.utils.EBusUtils] - SC 9A
2017-08-03 17:29:39.885 [DEBUG] [inding.ebus.internal.parser.Analyses] - 10 50 B5 05 02 30 01 48 00 01 01 9A 00 AA

2017-08-03 17:29:51.046 [TRACE] [nal.connection.AbstractEBusConnector] - Auto-SYN byte received
2017-08-03 17:29:51.046 [TRACE] [inding.ebus.internal.utils.EBusUtils] - SC 99
2017-08-03 17:29:51.047 [TRACE] [inding.ebus.internal.utils.EBusUtils] - SC 99
2017-08-03 17:29:51.049 [DEBUG] [inding.ebus.internal.parser.Analyses] - FF 15 B5 09 03 0D 42 00 EC 00 01 02 99 00 AA
2017-08-03 17:29:51.049 [DEBUG] [inding.ebus.internal.parser.Analyses] - >>> DHW Operation mode
2017-08-03 17:29:51.050 [TRACE] [inding.ebus.internal.parser.Analyses] - >>> dhw.program_dhw_circuit.program 2 DHW Operation mode
2017-08-03 17:29:51.050 [TRACE] [inding.ebus.internal.parser.Analyses] - >>> Auto
2017-08-03 17:29:51.068 [TRACE] [onnection.AbstractEBusWriteConnector] - No access to ebus because the lock counter …
2017-08-03 17:29:51.069 [TRACE] [nal.connection.AbstractEBusConnector] - Telegram too small, skip! Buffer: 00 AA

logs are a big old now, I can collect newer if needed but no change in behaviour.
I hope there is some magic setting needed before I start changing anything through OH2…