Restart in Troubleshooting Mode (Help → "Restart in Troubleshooting Mode…”), which temporarily disables all plugins. If that fixes it, you'll need to identify the plugin that's causing it and then report the problem to the plugin's developer.
If it still happens, provide a Debug ID (different from a Report ID) for reproducing it.
If it still happens, provide a Debug ID (different from a Report ID) for reproducing it.