Input in aplication screen gets blanked out when clicking a button

[agroenek]

Hi,

I lose the input in a particular screen after clicking a button ((Stratum toevoegen). The button adds a row on the screen. The first image represents the input on the screen prior to clicking the button). The second image is after clicking the button. The application reacts with a error message because the input is mandatory.

Any suggestions? Send a TAB keystroke?

 

[agroenek]

Solved by spying fields in Accesibility mode.