STM32H747 dual core debug using Keil and STLink

Hi everyone,

I have a multiprokect workspace in Keil uVision 5.43, for the STM32h747. I have some projects that have the double configuration CM4/CM7, a project for the CM4 and a project for the CM7.
Following the Application Note, I can debug easily the CM7 core and, opening a second uVision instance, I can see the real time value of global variables of the CM4 core. (I use the STLINK-V3SET)

But, most of the times, breakpoints on the CM4 core are not hit, also if I can see through the log that the code has been executed.

Someone have some hint?
I can share projects debug configuration if needed.

Thanks,

regards

Arianna