Please tell us some basic information before asking for help:
Firmware Version: Android 11 beta 3
Rooted or not:
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
As you can see from the video the cursor is not visible while typing. This in seen in some other apps also.