Our data model has approximately 500 entities and 600 relationships. We have it saved to a TXP file.
When I open our data model in TDM and save it (without changing anything) some positional attributes (Width, NamePositionX, NamePositionY, X, Y) for some of the nodes (Relation Shortcut) change inexplicably.
This seems to happen to an even greater extent when another developer opens the file, particularly when his display is set to a different resolution.
This makes it difficult for us to use text diff viewers to compare and merge the file in source control since we would have to scroll through hundreds or thousands of differences in order to find what had actually changed.