Do you have dshot bitbang enabled?
This is a terribly designed FC with many issues, one of them being that they used motor outputs that cannot be mapped to timers. Thus, Betaflight needs to use bitbanged dshot or burst dshot for motor outputs. Burst dshot is incompatible with bidirectional dshot, so the only option is to use bitbanged dshot.
Go to the CLI tab in Betaflight, type `get dshot` and make sure you see the following:
Code:
set dshot_burst = OFF
set dshot_bidir = ON
set dshot_bitbang = ON
set dshot_bitbang_timer = AUTO
If dshot_burst is not set to OFF, or dshot_bitbang is not set to ON, enter this in the CLI:
Code:
set dshot_burst = OFF
set dshot_bitbang = ON
save
The other major issue is that they put OSD and blackbox flash on the same SPI bus, so you cannot use both at the same time. If you are using analog video, make sure blackbox is disabled in Betaflight.
Stick with Bluejay 0.19 on the ESC.