Hello, thanks for contacting NXP support.
About your problem, we can see two possible causses:
- In your application bootloader, your RAM entry pointer is not correct.
- Your QSPI parameters file is not selected
To solve the first problem you can search in your .map file (inside the Debug_RAM folder) for the intc_vector, that is the address you should be using for your RAM entry pointer.

To solve the second problem, you should select the "Configure QSPI parameters" checkbox on the left side of the IVT view, and select the file mx25_sim133ddr.bin. you should be able to find it in your installation directory, for example "C:\NXP\S32DS.3.5\eclipse\mcu_data\processors\S32G399A\PlatformSDK_S32XX_4_0_0\quadspi\default_boot_images\mx25_sim133ddr.bin"

We strongly recommend to follow the "S32G-VNP-RDB3 Software Enablement Training Presentation" if you haven't already. you can find this in the documentation section of the S32G-VNP-RDB3 product page.
Please let us know if this information was useful.