Target distance/acquisition wonky

[Nightdare]

Hi All.

 

Over the past few times flying, it seems my radar can't keep it's target distance

Lock the target

At a certain point, Target Range Scale appears in the HUD

....then disappears, appears in the HUD, then disappears, appears, then disappears (as does the ASE in the VID)

This from whatever distance I acquire target, on to the point the target is well within Aim-9 distance and regardless of the plane or course we both are heading

 

Now I'm uneducated enough on the turkey to accept I'm doing something wrong, but I didn't change my actions, and prior, I never had this problem

If I lost TRS, I lost lock, simple as that