Hi rorellana,
It sounds like you’re seeing that Axure RP is freezing after a recent update from build 3366. To confirm, are you currently running build 3368 or 3369? You can verify this by going to “Help > About Axure RP”.
Besides the update of Axure RP, do you recall whether there were any other recent changes that occurred on your machine at around the same time that the freezing started? For example, were any other apps updated or installed? Does the freezing issue persist if you reboot your machine?
To verify, are you able to open the Axure RP app, and then it becomes unresponsive after opening a file? If so, is it a specific file that causes the app to freeze, or does it still freeze even if you create a new file?
To help find more clues about the error, would you mind sending a copy of your Axure “logs” folder to support@axure.com? On a Mac, you can find those in “Users/[YourUsername]/Documents/Axure User Data/Axure-8-0/logs”. If you send a zipped copy of that folder then this will allow us to check the most recent error_log files.
In the meantime let us know whether you have questions!