Odd tone like missile locked after respawn in 1.54 update

[Majesco]

After DCS 1.54 updated i find sometimes after the first or second respawn (by clicking Debriefing menu button) a long long odd audible tone appear only inside cockpit of all aircrafts in FC3 module throughout the mission that hear the same as tone of missile/ radar locked even i was in freeflight mission, no any threats.

 

That missile lock audible tone only disappear until i want to eject, respawn next time and everything back to normal. Is that tone a bug?

 

Found nothing like that in the last 1.53 update and before

Edited August 6, 2016 by Majesco

[Harpoon]

if you're talking about the SPO equipped aircraft, that's been a bug for a long time. don't know when it will or how it could be fixed.