The Official ManicTime Chrome extension (in its current version: 1.1.2) has some serious WebSocket issues that affect document reporting (url) of Google Chrome. I tried to fix them here to make it more reliable. I didn't change anything else.
Go to chrome://extensions, then:
- Uninstall the official extension
- Enable developer mode
- Click import extension, and use the files here
- Allow incognito from settings (optional)