Could someone do some help for this question? I have met it too.
what is the simulation tool you are using
PE micro
When the flash is being erased, the MCU is powered off, which will cause the flash block verification to fail. After the flash is erased through the offline burner, it will become normal. This may be the flash verification protection mechanism of mpc5744 itself
This issue was probably caused by old PE Micro driver. Did you update it?
https://community.nxp.com/docs/DOC-342273
What is your S32DS Version?
Jiri