It may happen that saved path restrictions are no longer available after a restart.
You can correct this error as follows:
- search in the transport network for the connection(s) where the restrictions are not saved
- select the "Delete waypoints and connections" option (see screenshot)
3. there are now several connections. Delete all connections except the last one (which will be automatically blocked if a route passes through this connection).
- Restart ipolog and open the scenario again.
You should then be able to save the restrictions again.