Can't communicate MT25Q flash over Serial Flash Controller II Intel FPGA IP with quartus_pgm --nios2 or Nios Flash Programmer-- Error 18927 FAILED when using quartus_pgm

I Can't communicate (with Nios Flash Programmer or quartus_pgm) with a flash chip ( MT25QU1G ) on an Arria V via the Serial Flash Controller II on the NIOS processor. (We can however use the chip to ...