Configuration problems of the jeti r6 to exbus receiver

Is your R6 light the version with heat shrink tubing? That receiver was meant for indoor use and has been discontinued.

As owner of a DC24 you probably can afford a new REX 6 receiver. Buy one and test your configuration to be sure that it works.

And search for "f4 betaflight jeti" on google

if you have a thermoretractile which would advise me for a racing drone and that is the smallest and smallest?