Receiver connection issue ELRS

I’m using a Matek H743-Wing V3 with ArduPilot 4.6.3 and an ExpressLRS ER8 receiver and Frsky X18 (ethos) wired to UART6 (ArduPilot SERIAL7). I have BRD_ALT_CONFIG = 1, SERIAL7_PROTOCOL = 23 (CRSF), SERIAL7_BAUD = 115, SERIAL7_OPTIONS = 0, RC_PROTOCOLS = 512, RC_OPTIONS = 269, and RSSI_TYPE = 3. The receiver is bound (250 Hz packet rate, CRSF mode), but no RC input is detected in ArduPilot. My Tx is connected to my Rx. I’d appreciate any suggestions on what else to check as im really slumped Thanks!

RC_OPTIONS
RC_OPTIONS