@redfirebrooks according to the log, the node is not sending any measurement data. It just goes to sleep over and over again.
Hard to tell why this happens without seeing the exact sketch code. Would you mind posting it?
EDIT: Sorry, was on mobile and didn't see that the values were being sent, just not on the first two sleep periods. These lines show that the node is sending values (first the value 1617, later the value 1846).
TSF:MSG:SEND,42-42-0-0,s=0,c=1,t=37,pt=2,l=2,sg=0,ft=0,st=OK:1617
TSF:MSG:SEND,42-42-0-0,s=0,c=1,t=37,pt=2,l=2,sg=0,ft=0,st=OK:1836
So it seems like the problem is that Domoticz is unable to display the information.
What does the Hardware->Setup page looks for the MySensors gateway?
What is shown on the "Devices" page in Domoticz?