To answer your questions – 1) I used the same SDCard (that meets all required qualifications) for all my tests mentioned previously, 2) In my previous tests, I did not format my SDCard to one partition before the “dd” copy, though I did umount all active partitions before any “dd” copy. I tried your suggestion of reformatting my SDCard to one partition before copying the .sdcard file – that had no effect.
In the past, I did build a standard BSP30 from scratch and it booted successfully (as mentioned before, I also did standard builds of BSP32 and BSP34 with unsuccessful results). Today, I decided to download and standard build BSP31 – it booted successfully. Also, downloaded and standard built of BSP32 again – that did not boot at all (to reconfirm previous results).
If I were to hazard an informed guess at this point, the build recipe was broken between BSP31 and BSP32. In doing a MELD comparison of the “sources” directory where all the recipes are stored, there appear to be changes that delete references to some S32G274A related files. I will follow up on this after the Thanksgiving holidays with a more detailed examination of those changes.