WeMos D1 mini only D5,6,7 pins for Servo

I´m running this board for a while with 3 servos, but when i wanted to add 4th one, I discovered none of the rest pins are working for it. I even tried it with the simplest code:

#include <Servo.h>
Servo servo;
void setup() {servo.attach(D3);}
void loop() {servo.write(180);}

Anyone help?

What is your question?
Lots of pins available, but is there something special about servo pins?

https://wiki.wemos.cc/products:d1:d1_mini

Kari

D3 has pull-up, does that affect your circuit?

Cheers,
Kari