Wemos going low on boot - resistor not helping

HI All,

I’ve got a Wemos D1 mini with 200 WS281x LEDs connected via GPIO4 - LED’s and Wemos are powered via the same power supply (5v 10amp) - but I’m finding that the Wemos is pulling D4 low on boot - I’ve tried a 4.7k resistor across 3.3v and D4 as per the docs - but the wemos is still pulling D4 low - so it won’t boot with the data pin connected.

Has anyone else got around this?

Thanks
Leacho