RF link kit problem.

So I got this RF link kit (http://www.seeedstudio.com/depot/2km-long-range-rf-link-kits-w-encoder-and-decoder-p-321.html?cPath=2) and now I'm facing one disturbing problem about it. The thing is, I can not change state of other output pins if any pin is HIGH. Receiver seems to ignore such. Pins at receiver side "updates" only if all the transmitter's pins is LOW and then each goes HIGH/LOW.
Here's a little demonstration video about this issue: - YouTube

Does anyone knows what I'm doing wrong?

Since this problem is code related, and you haven't posted any, it doesn't give us much to go on............

Actualy there is no code at all - see video.

Actualy there is no code at all

Something is reading the state of the switches, and turning on or off the LEDs.

Ahh, I get it, theres no microcontroller in circuit. The output pins of the receivers are just hooked to the LEDS. The RX pins just follow the state of the TX pins. When there is a microcontroller in circuit, and you send binary data (similar to serial using the virtualwire library or similar) down the pins, you can make the LEDs do whatever you program them to do.

How the modules behave on their own isn't entirely relevant here, take it up with seeed ?