Problem with STM32L552 Nucleo startup crash

Have exported an project from STM32CubeMX to the Kiel ARM MDK. It builds with no problems, but hits the HardFault _Handler as it tries to jump to a cleared address, oxFFFFFFF, in R3 after hitting the __main and setting up the __scatterload assembler. I must need to set something , but cannot find any references in any of the help or application options. Note it is a 400K application and I have verified the stack and heap sizes in the STM32CubeMX.


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