This sounds like a latency issue. Go to the Settings menu on the home screen (cog wheel icon), and proceed to the 'Audio Settings' option. Use the 'Estimate automatically' function and follow the on-screen instructions to run the latency time check. Once this is done, you should see the latency time (in milliseconds) being filled in. This can also be corrected manually if necessary (it would usually be between 300 - 500 ms). You should now be able to continue with your recording again.