Do you have any availability for a phone call and teamviewer so I can review this with you?
The logs labeled log4_.txt don’t look consistent with the configuration you have running on the device. Have you tried logging using the test config I sent you? I would like to see if we see any thing similar with the linking device not producing any data.
I still believe something else on the bus is causing issues. Can you gain access to a 3rd party logger? Have you tested this without any device on the bus then adding them one at a time in addition to disabling nodes with the node monitor?
What is happening with Transactions 1 setup in node1? It does not look like a modus command. Deleting might clear up some of the issues you were seeing with node1.
Can you please let me know a phone number and when you can be available for a teamviewer session to review this issue.