Error to add HEX file in Convert Program File tool - 2

Good morning sirs! Excuse me, but I could have a similar problem..

I attempt to load my EPCQ64 flash on Cyclon V Soc based pcb.

I try to follow strictly BOOT COPIER METHOD, to obtain single JIC file with Flash loader, SOF and HEX (as per https://www.intel.com/content/www/us/en/programmable/documentation/iga1446487888057.html#lro1432740789557)

I use an external tested SDRAM instad on chip ram memory, but when use Jtag it runs fine!

Ok, All softwares works correctly separately (By byteblaster the POF starts FPGA, and with Jtag Nios App runs easily)

Main problem is to know reset vector offset for Nios: I cannot know what is SOF size to load, and so I cannot know WHERE start my Bootcopier+Nios HEX application .... I tried to set this offset at half of my 64Mbit flash size to be sure about no ovelap

but system cannot boot after power on...

Have you meet similar issue?

Thanks to everyone!