[Qt 5.12.11] One cannot type anything to an input dialog on embedded devices

Steps to reproduce:

1. Install any embedded Qt 5.12.11 binary
2. Flash the image and open qtquickcontrols2 demolauncher application
3. Select 'Dialog' and 'Input'
4. Start typing something with the opened VKB to the text field

Expected result:

One is able to type characters to the text field

Actual result:

The Input dialog is shown on top of VKB and once you start typing, the VKB closes.