Mesh Brep produces different result after saving

Ok David, 

I think I should start being a tester for you :D Just found another one that is really weird.

I am using Mesh Brep in a Cluster on some planar surfaces. As soon as I Save & Close the Cluster, the solution changes to something much worse. Deleting the Mesh Brep component and placing it again produces the original result.. until I save.

To reproduce this inside the cluster delete the Mesh Brep component and place a new one in its place. Save & Close the Cluster.

Please find a solution for this!!

Before saving:

After saving:

Thanks, Armin.