Yes, there are a few issues with the latest release. The issue with "edge aware" is reported in the changelog:
Temporarily removed Edge Aware in masking due to crashes
It seems to me that when you move the view the mask is still there, but the overlay is no longer shown (almost as bad)
The issue with C1 is that there is no a plugin version of Denoise for it, so you have to open it as a standalone application, and yes, they have removed the option to overwrite the original file. The plugin (available for PS and LR) will allow you to "Apply" the changes to the original image.
Anyway I agree that it was a bad idea to remove the "save" option.