Is this a known bug with Sonar (active/passive)

[Mavvvy]

Hi all,

Im new to Dangerous waters, just started a few days ago and i'm only beginning to get a handle on the basic systems.

However I think I might be experiencing a bug, although I'm not sure if it might be down to inexperience on my behalf.

Basicly when I ping with active sonar in any sub, I can sometimes hear the report coming back when it hits something. But I dont get an image on screen to mark the track. It seems to always read the surface contacts with a little cigar sharpe. But for subs the audio cue comes back but the visual indicator is not but up on the screen when the ping hits it. Hence I cant mark my targets that way manually. The funny thing is this seemed to work when I first started playing.

Even sometimes with passive I dont get the visual cue but if i'm listening to that bearing I can hear an engine.

Any ideas with what i'm experiencing hear would be great.

Kind regards,

Mavvvy