TBS Lucid FC - Serial Rx Not Responding

[NoSadFaces]

Hello, I'm a beginner to iNav and have been having trouble getting iNav to communicate with my Crossfire Nano receiver.
The current build works in Betaflight, but when I flash iNav to the TBS Fusion FC, I can't get the serial Rx to recognize the receivers inputs.

TBS Lucid FC
Crossfire Nano Receiver
Using iNav 7.1.2

Thanks for any help.

[mmosca]

Can you share a screenshot of your ports tab and receiver tab?

You can also try a nightly build of INAV 8.0.0.

[NoSadFaces]

I updated to the most recent 8.0.0 release and still have the same issue.

My setup follows the same UART layout as the manual. Also tested running Betaflight again, and the UART works properly.
https://www.team-blacksheep.com/media/files/tbs-lucid-manual.pdf

[mmosca]

@bkleiner can you have a look at this one? I tested with a gps and it worked, but looks like higher baud rates may have issues. (Tested with elrs rx on uart 5 and 7 and it did not work.

[bkleiner]

Will do. I am off on holiday till mid next week, but I will look into it after.
Edit: Now that I think about it pretty sure I tried it with a nano rx.

@NoSadFaces could you please check which crsf version you are running?

[NoSadFaces]

Nano RX Firmware v6.36 on hardware v1.33.

[mmosca]

I will recheck later today. Turns out my elrs radio was setup for mavlinkrc, not crsf. But I did see traffic on the uart using a scope.

[bkleiner]

just tried it again on inav 7.1.2 with a nano rx v1.01 on v6.36 and it indeed works as expected. continuing to investigate.
update: happymodel elrs receiver also seems to work fine.
@mmosca can you please see if the issue on your end was indeed related to your receiver settings.
@NoSadFaces which target do you flash on BF? there are two revisions of this board.