Arduino IDE 2.3.3
STM32H750XBH6
STM32 MCU Based Boards 2.8.1
An empty sketch is compiled with only setup and loop.
in startup_stm32h750xbhx.s
running "bl __libc_init_array" causes WWDG_Handler before entering "main".

Program compiled using CubeIDE works fine. "main" can be called.
Program compiled using Arduino but part number in VBTx works fine on STM32H750XBH6. "main" can be called.