I flashed wled to a nodemcu, connected a 7 leds strip CI to D3, DI to D4 and tested two configurations:
using usb wall adapter or 5V / 10A power supply connected to vin/gnd
I have the same result in both cases:
Only the first 5 led respond to color change. If in led setup in set 12 led instead of 7, all led respond the the demand.
This is the first time i use wled, maybe i made an error in config… i will post screenshot of my config later.
I cannot say if i have true apa102 or apa102c. I drived the same leds with a raspberry pi zero and hyperion with no problems (the 7led strip is a spare strip before trying to replace my long cable between pi and my hyperion setup with wled config)