Motion detector for predator randomly does not work

The motion detector for the predator sometimes does not show the position of the players inside the detection range, is weird because it works but, sometimes some players or even all players are not detected, until they’re back. I suppose that, when a player is not moving, is normal that they aren’t showed up. But, if they are walking or running, they should be always visible, I have been seeing this many days, maybe a month, I don’t know, but, sometimes, the gameplay is affected by this, because you as a predator player, expect that FT will be showed up, but no. It doesn’t.

PC - Steam

if the team covers everything in mud. the detector is blocked, it is part of the game mechanics.