VT pin flashing LED on WT12D RF receiver module even with transmitter not enabled
I don't know what exactly caused the flashing part, but I know what resolved it - replacing the battery by a DC adapter, which made it work seamlessly. Thinking that it might have been because the battery wasn't "keeping up" with the demand, I tried to check if the battery was near it's end, and it was. But if it was slowly fading away, the intensity should have gradually reduced, so that still remains an unsolved question.