Issues with mcuboot partitions for nrf54l15 cpuapp and cpuapp_ns, ("Unable to find bootable image")

Hi,

currently trying to boot up mcuboot with nrf54l15 pm_static for both cpuapp and cpuapp_ns. Both files  are included in the zip file.

I have already tried several configuartions for sizing partitions but I got the same result  whenever I boot the device, it stuck at 

BOOT_LOG_ERR("Unable to find bootable image").
Could you please, give some guidance on what I'm missing here.
Thank you for your help.
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