Sk6812 strip - Does anybody have this led strip and is working? What is your setup? (help needed)

I have lights WS2812b (5M) + RP B+ and grabber V4L2 on Openelec 8.0.4. Everything was working ok for few months. Now when I turn on ambilight lights are working for sam time ok (different time, some time 5 minutes - sometime hour), and then they freeze on the left side of the TV (from approx. 185 led till the end of strip 271. ) After that left side won't work anymore, sometime freezzes on last color sometimes on black. The right side working ok. If I turn of light and turno back again it is not helping. I must wait with turned off for approx. 10min, then I turn them again and is working for some time and again freezes. It is driving me crazy.

Can you please help me what is wrong with my setup? Thank you!

EDIT:

I bought new led strip. Now I have sk6812 with neutral white, but now is not working last 60 lights and on others color is not ok. Almost all the lights are shinning only white.

Led SK6812 RGBneutral white
Raspberry B+
Ambibox dreamcolor
Grabber V4L2
all on Hyperbian.

Last 60leds dont work, others shine white mixed with color, lights are moving with picuture, but all seems white. When I try to get only one color with color wheel on my phone, they are changing to color - again white mixed with color.

What I did wrong?

I bought new led strip. Now I have sk6812 with neutral white, but now is not working last 60 lights and on others color is not ok. Almost all the lights are shinning only white.

I use Hyperbian now and have this problems. And if I use Hyperion on my phone and choose only red or some other color, they shine white again.

No, it is RGB with neutral white . Every second light is shinnig in color.

Now, my setup has new lights, and I don’t know how to make them work:

Led SK6812 RGBneutral white
Raspberry B+
Ambibox dreamcolor
Grabber V4L2
all on Hyperbian.

Last 60leds dont work, others shine white mixed with color, lights are moving with picuture, but all seems white. When I try to get only one color with color wheel on my phone, they are changing to color - again white mixed with color.

On settings I use adalight (115200 baudrate), If i change anything lights go off.

Thank you for your help!

Ok, thank you for your respond ;). Hope someone can help.

Anybody knows this? Struggling for days now and can't find how to resolve problem. Do I have to buy different lights or..?

Thank you, will order Wemos then, do I need anything more ?

One question more I have this power supply connected on both side of LED strip 5m (60 per m) - 272leds :

https://www.aliexpress.com/ite…b201602_,searchweb201603_

Is it enough ?

Sorry my mistake, now I se that mine is 5V 8A, is it still enough ? And which type of level shifter you suggest ?