RW7 constantly freezes while updating/exporting

Updated to RW7 this morning.
While I am impressed with the many new features, the program constantly freezes while it’s in the process of automatically updating/exporting as I make changes to the project.
If I cancel the ‘exporting’ dialog box I no longer have access to ‘preview’.
The only way out of the situation is to shut down RW, and reopen. Naturally, the changes that I had not saved have been lost.

Curiously, although I have worked on and saved a couple of projects, neither of these shows up in the ‘Open>recent’ window.
Using Verd theme from rapid-ideas
Thanks for any input