ELRS not moving anything in Betaflight in new build

[ionic storm]

Building a TinyTrainer with ELRS.
FC: BetaFPV 4S F405 AIO v5
ELRS: Radiomaster RP1
Controller: Boxer

I have a similar setup on all my race drones, (except for the FC/ESC) and never had any problems setting them up in Betaflight.

This AIO has a connector for the RX using UART 3.
This AIO has a connector for the VTX using UART 4.
So plug and play!
So I used 4 pre-crimpted cables, soldered one end to the RP1 and put the other end in a 4 slot plastic plug that fits in the AIO Rx connector.
Rx to Tx, Tx to Rx, as in all my other drones.
ELRS got power, so I was able to update with firmware 3.4.3, and updated the binding phrase. So same setup as my other drones.
RP1 successfully bound to remote (solid green light)

In betaflight

• set up serial Rx to UART 3
• set up VTX (MSP + Displayport) on UART 4.
• essentially used the same setup as with all my other drones, except for the ports above.
• set up all the motors, everything running smoothly
• set up the Nano90 camera, works great with HDZero goggles
• Telemetry is on, serial mode, crossfire setup.

But I cannot control any of the elements in the receiver tab with my remote.

I am at a loss. The plug seems fine, but will try another UART by soldering the ELRS directly to the AIO tonight instead of using the plug.

Am I missing anything here? Although it's a new type of FC I have never used before, everything else is the same hardware and software setup as all my other drones.

Is there something to specifically check for with this board, or with AIOs in general? It's v5, so the latest generation. Its my first AIO.

[swift yoke]

Can you show a screenshot of your receiver tab?

If there are no colored bars at all, it means you need to reflash Betaflight and select CRSF as the receiver protocol on the firmware flasher tab.

[ionic storm]

if was flashed as CRSF, and there are color bars. They just don't move....

[swift yoke]

Show a clear photo of both sides of the FC

Have you soldered this jumper as instructed in the manual?

Here's the V5 manual:

[ionic storm]

THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!