problem with "notes field"

I have a problem with the cybertracker app (downloaded from the PlayStore). In all the databases I open, I have problems filling in the written fields, such as the “notes field”. You can see everything in this video
The smartphone is a Motorola moto x4. I don’t have these problems with other app.
How can I solve the problem?

Hi Enrico,

That sure is weird. Does it happen with any other apps? Have you tried installing a different keyboard?