I'm working on a simulation of a pipeline that must first be dented and then pressurized. I keep trying to run it but it keeps giving me the error mentioned above, I check the solution and it says it must be that the model is ill constrained. I've checked everything and even performed the simulation on a very similar model and everything is the same yet this one doesn't work. Here's all the data related to it, is anyone able to see something wrong or give any recommendation?