Version 11.2.2 of SMS does not seem to save files using the CMS-Wave extension of "sim". If you attempt a "File Save As" with select as type "CMS-Wave Simulation (*.sim) and then type in a new name and click "Save" the program will only save a sim file with the Project name_Cartesian Grid name. Previous versions allowed saving the sim file with a different name which after running CMS-WAVE it produced an output file (wav) with the name of the sim file. This allowed running various runs with the same grid file. Is this a bug or a "new feature" of Version 11.2.2? Thanks, Karl