It is not possible to change the number of LEDs

It is not possible to change the number of LEDs. On all Esp 8266 controllers. The field for entering the value is not active. Everything worked before.

What version of WLED are you running?
Post a picture of your config screen in WLED.

This is not a typical problem, many people are still running 8266 boards.

0.14.0 Hoshi

A bit further down from your screen shot there is the setting you are looking for. look for “length”.

image

Thank you!!!