I am a beginner in photography and I am having trouble with my Falconeyes SS-350H with Softbox lights. We have two lights, but only one is flashing when using the RF-DD4 wireless flash trigger.
The flashes are both functioning well. However, when I take a picture only one is flashing when I press the test button on the transmitter. It's like it's only flashing where you connect the receiver, but when I connect the receiver to the other light (the one currently not flashing when taking a picture) it will flash, and the other one does not.