@Stevie they definitely should have an effect, perhaps this is not modeled for the TGP and the laser beam.
It was lasing, the āLā on the TGP&HUD did not appear on the screenshot because it was blinking. As i said, i am not too familiar with LMAV and its indications. Also, is it normal for the LMAV WPN display to show AG65K instead of L? My bet the LMAV is implemented into the F-16 through the regular maverick interface, which goes some way to explaining the wrong stuff you found.