Hi maxflax,
most of your nodes reply with a :
01-06-00-49-81-00-00-31
only the node number 17, 19, 21, 24 and 25 are working.
What are all of those not-working nodes?
If some of these is a sensor did you try waking it up by pushing the button on it? If you added those nodes with some other software, HomeGenie cannot now what kind of nodes are unless you wake them up or remove/add them again with HG.
The log I pasted if from some forum, just googled "open z-wave 0x49, 0x81, 0x00".
g.