Version of the original project file not supported when creating new branch in Mx5.13.1

I just created a new branch from my model. After the branch creation I got the error below. Then two thinks happened. I am unable to open the original model, and trying to open the new branch still gives this error. The real problem is an out of memory error. Closing the model and then reopening does not help, the messages stays the same. You have to close Mx5.13.1 and then open it again to solve it. Then both models can be opened. Regards, Ronald
1 answers

We have a item in our backlog describing exactly this problem. The exception during loading gets ignored and the not so informative message is shown. We will fix this in the near future.

And on Thursday we will start working on the out of memory exception that is the root cause here!