Uh, oh – silly mistake time! Here’s an excerpt of the new LED Node v2:
These are the top and bottom view of the FTDI connector in the middle of the board, flipped horizontally.
The bottom view has the “GND” label on the wrong pin!
Drat. Will do a re-spin with the corrected silkscreen, but the first few units will be like this so make sure you use the alignment shown on the top of the board.
The good news is that connecting the FTDI cable or BUB the wrong way is harmless.