I can't tell you why Sharp Rom won't reflash in your case, but I can tell you that Sharp Rom 1.32 did the job for me.
Although in my case I prefer to use tkcRom 2.0, but after I reflash I still get the openzaurus login prompt for some reason and it won't boot past that. I think that OZ somehow repartitions flash, and it causes other roms not to flash properly. I still am trying to figure out how to reflash back to tkc.
for some reason even a complete NAND Restore does not get rid of the OZ login prompt!!!, which seems to be beyond my understanding, due to the fact that NAND supposed to erease everything.