Qtcreator crashes on "Attach to running debug server"

Hello there. 

I launched gdb server on ":4242" (via st-util). For that I crated kit-configuration for bare-metal device (I mean that there is arm-none-eabi-* gcc, g++ and gdb). 
Then I tried to attach to this server with qtcreator and it crashed (qtcreator I mean). 
So I found closed issue here with next advice: "try to turn off clang code model". 
I did, but it still crashes. 
I'll provide any kind of information you need (Sorry, I lost that issue here  )