glad it worked,
switch your line from
FastLED.addLeds<APA102, data, clock, BGR >(currentLED, totalLEDs);
to
FastLED.addLeds<APA102, data, clock, BGR, DATA_RATE_MHZ(8)>(currentLED, totalLEDs);
should do the job, otherwise update your FASTLED library?
I don't know what QR code could let beer...