Receiving e1.31 ESP32

While setting up WLED for a project I would like to ask how to setup e1.31 reception correctly. Using v14 WLED version.

Situation:
output - 1string/segment with 200 pixels TM1814 RGBW
sender - Xlights sending 2x universes 170 each, (more than required) tried also just 170 single universe
or sender - FPP in pixel test mode

What I receive is only data on first 42pixels … why is that? That is very close to 170 channels what is weird.

Sending in DDP mode I can receive all required channels.

Any idea? Thanks in advance.