I am using ethernet shield and have created a poll to a webserver parsing

I am using ethernet shield and have created a poll to a webserver parsing JSON… However as soon as i add the “FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );”
The Data gets all mumbled up and application stops to work,… Im am using the standard code for webclient from arduino page… please help

See https://github.com/FastLED/FastLED/wiki/Interrupt-problems

Thanks for fast respons. Do you know if the ARduino Zero will be able to handle it? They only mentioned the Duo.