Debug Problem with STM32L011

I want to debug my source code with µVision V5.29

when I start the Simulator, the program starts at the correct program address (0x8001F5C) and the debugging is ok.

But when I start the hardware debugging with the STLINK-V2 the program starts at wrong address ( 0x1FF000FC).

I have no idea what happen there. Does anybody have any idea what's going wrong?

Best regards Reinhold