Screen problems while using KATE

[Jeremy Scarella]

Hello, my problem is that when I use Kate for coding and that I have multiple files, my screen bugs and displays a random application (instead of staying on Kate) when I try to go from a file to another (thanks to the tab).

For example if I'm using the terminal and Kate, and that I try to switch from my file main.cpp to my hour.h file, the screen will automatically change and display the terminal instead of the file I selected on Kate.

Does anyone know what can trigger this ? And how to fix it ? Thanks a lot.