I think one of the problem is, in android version, the QR gives "non hex" format of raw transaction ( something like this AFEA*0JN*-P9O1OY+:GV+.GKECS2R$KZW9$6MU6KPMMJLRI74SCEVS$K$NEASLB0.R.U3KEGJ+1UHYGF-Y-:PEY:ES-0D-$P0TUX1F4D6S5P..... ), while in desktop version the qr data is in hex format.

I'm on 2.6.1 both desktop and android.