I am using InfoWorks ICM 6.5.

I have deleted sections from one scenario and copied similar sections in from another scenario. When I look at the model everything seems fine, however, when I run a sim and look at the results some of the sections I have copied have been duplicated.

I can go back and look at the model without the sim and there is only one node, but in the simulation there are two. Different Node ID (one has an !) but essentially a duplicate.

This only happens when I copy something from a scenario further up the tree, in the case the base network that we started with

The scenario has been validated and changes committed prior to running simulations.

There are multiple users using the model, but each person is using a different scenario.

Is there anyone who experiences the same thing and has found the reason why?

This doesn't happen every time, but often enough for it to be a problem.