ESP32 WLED Sync

Good day, please can someone help me with WLED Sync.

Ive been trying everything ive researched to get the sync to work between 2x ESP32S NodeMCU running WLED with one controller controlling 2 channels WS2812B and other controller controlling 9 channels.

Ive tried ensuring the UDP ports are the same, making sure the units are on the same wifi, making sure the sync button is highlighted.

Ive watched many videos on youtube explaining the ‘‘simple’’ process for this but i just cannot see them sync at all.

The most weirdest part is that when i use signal RGB on pc the app can control the 2 controllers perfectly but when not using pc or Signal RGB, the 2 units wont sync.

It there anything steps im missing to get these 2 controllers to sync to each other?

Any starting advise would be very much appreciated.