See page 80 of the 145x datasheet.
It says that the software safeload addresses are determined by the compiler, so they may differ from the "defaults".
This is indeed true... and it says to look at compiler_output.log in order to confirm the actual addresses.
The software safeload addresses should be included in one of the header files generated by Sigma Studio upon exporting, so that it can be used in code.
One should not have to manually check compiler_output.log any time they change the schematic, then have to manually change their code to reference the correct addresses.
Please fix this in the next release of Sigma Studio...