Hi all,
I've recently been trying to hook up heating water to hot water unit heaters and track the flow through the pipe. I've been successful in hooking up the units and seeing the corresponding accumulated flows through the pipe. My general workflow has been to start at the most remote unti and work my way back to the main.
However, I've noticed on several occasions when I've added a laterial onto the main and consequently lost all of the corresponding flows which were being tracked up until the connection.
To help the community troubleshoot, can you post a file with just that system? It will help give a better idea of what is happening.
Are you using connectors that came with the model? If so I have found that after replacing them things seem to work.