Bad fpv image

[Droneking]

Hey my vtx seem to be sending good RSSI but I have a weird image problem. Has anyone ever come across this, see attached.

 

[HighTechPauper]

The first thing I would do is get a camera 5 button joystick and turn off the Foxeer OSD and just run the BF OSD. Then I would try to reload the fonts in the OSD tab in BF. What I am seeing is not a normal video issue and is likely due to some OSD overlay that is doing it based on the large blocky areas I can see in the 1 picture you provided.