Changing colors from color picker affects only the first LED. about esp8266-websockets-led HOT 3 OPEN

Hi. Unfortunately I don't have wemos to test. But if it helps, then I added this line. effects.ino is not used for colorpicker.

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I think that the problem is not noticeable when there are frequent calls of .show();. But I SEE IT. I see the first LED glitching and that drives me NUTS. :) Thats why i doubled them too.
For example if i press few times quickly same spot on color picker or brightness slider, there is no problem.
I updated to 2.0 but i don't remember what was the previous version installed on the same WEMOS. I had no problems using it.
When i have time i'm gonna try FASTLED examples because i think the problem lies there.

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Hello,
So... i have tried FASTLED examples and i tried some code to simulate the problem, but unfortunately it didn't appear again.
I assume that my esp8266 is the problem and will try some other board.

I shot how i try to reload the page few times for it to work. You can see the first LED glitching.
https://www.youtube.com/watch?v=G9vvmqG-r80

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