There could be quite a few reasons this is happening. First, please ensure that your computer meets the minimum requirements. Once you've established that it does, the most common culprit is antivirus software.
If you're using a Mac, the following apps have been identified as apps that can cause our app to lock up: BetterSnapTool, Magnet, SizeUp, Moom, Divvy, HyperDock, AdBlock Plus, and Monosnap
Some other applications that have been identified to cause similar behavior are: CleanMyMac 3, Kaspersky Anti-Virus, RescueTime, and other security software.
Please disable these programs before proceeding.
One way to get around this issue if you’re not running these apps is to make sure you revoke all accessibility permissions before initiating a test session. You can do that by going to Preferences -> Security & Privacy -> Accessibility.
If this doesn't resolve your issue, we suggest trying a new browser (Chrome and Firefox are our preferred browsers.
If you’re on a PC, the most common reasons we see these freeze is also due to antivirus software. The most commons ones are: Kaspersky Anti-Virus, Norton, and MacAfee.
Please disable these programs. If you continue to experience issues, we suggest using a different browser or deleting and reinstalling the screen recording software.