DShot600 Not Working with SpeedyBee F405 Wing + BLS 50A ESC – DShot300 Works

I am using a SpeedyBee F405 Wing flight controller with SpeedyBee BLS 50A ESCs for a VTOL (tricopter layout). When set to DShot600 (Q_M_PWM_TYPE = 6), the motors pulse rhythmically and don’t work correctly. Switching to DShot300 (Q_M_PWM_TYPE = 5) resolves the issue.

Here are the servo output pins I am using

Did you configure the SERVO_xxxx parameters? That’s a BKHeli_S ESC unless you flashed Bluejay right?

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Thanks, I did not set the SERVO_DSHOT_ESC by default it was 0 then I set it to 2 which is BLHeli_S.
I appreciate your help
But I am planning to use Dshot 300 as my VTOL plane motor wires are long and Dshot 300 would work nicely with less noise than Dshot 600