Ugh, I'm getting so tired of fixing one problem just to have another one immediately pop up. When attempting to charge my Master RC, I initially see the usual charge status indication (one to four of the LEDs blinking in sequence), then the RC quickly reverts to the leftmost LED blinking rapidly. I don't see any reference to this in the manual and haven't noticed any posts. Has anyone seen this before? Judging by how other devices indicate charging state, this looks like a failure indicator of some sort, possibly of the battery or internal charging circuit. Also, when I charge the Slave RC with the same charger, everything is fine. Sheesh!