Having an issue with Sam Guyers ESP32 RMT output, using his latest version. Thanks for the great work you did! However when using more than about 80 LEDs per RMT port, the output signal is messy. I am using the DemoReelESP32 Demo. With logic analyzer I found out that the fastled.delay() function issues it’s own show() during it’s waiting time, which starts before the show() of my main loop was finished - which causes a messy, overlapped bitstream.
When I remove the show() from the delay function in fastled.cpp, all works fine.
Below is a screenshot of the output with Sam Guyers original library (no pauses because show()'s are overlapping), and one screenshot after removing show() from fastled.cpp.
Refresh rate was set to 100/second.
Please file a bug report on github so I can assign it to Sam and track it.
(Also removing the show from delay isn’t the right thing here - FastLED.delay calls show repeatedly to drive dithering - if you want delay without show being called call delay - but the RMT code should block if a frame is currently being written out 
@markus_enzinger Thanks for the information. I have had some synchronization problems, and I’m hoping to push a new update soon.
@markus_enzinger Try the version that I just pushed this evening.