Support of "mmc write.p.continue"

[dipcore]

In my bin I have:

mmc erase.p system
filepartload 50000000 MstarUpgrade.bin e04000 c800000
mmc write.p.continue 50000000 system 0 c800000 1
filepartload 50000000 MstarUpgrade.bin d604000 c800000
mmc write.p.continue 50000000 system 64000 c800000 1
filepartload 50000000 MstarUpgrade.bin 19e04000 a70be7

Im getting error
[!] Error - could not determine partition label/type for data chunk @ line 21