Network Calculation Error - Node O‡–˜


I am running into the following issue when attempting to analyze a network:

Errors Preclude Computations
Errors Preclude Computations
Error Computing Inlets Calculations for Network
Error in Inlet By Pass Designations - Loop Detected

I have attempted to identify any solutions to the problem to no avail.

Moreover, the node editor and navigator show node "O‡–˜" to be present, despite the fact that I did not manually input any such nodes or areas into my network.

Restoring the .gdf file to a previous version before the error was encountered did not ameliorate the problem.

I am running Microstation SS4 v8.11.9.832

Any help would be greatly appreciated,