IR Heat Seeker Missiles - Lock Behavior Not Functioning Properly

[CyberCopter]

I've been flying the Viggen for a while now and working my way through all the weapons. When trying to use the Sidewinder derived A2A missiles the seeker heads do not behave as expected, compared to the F-4E which worked flawlessly in the same mission file. The only heat source that I can get a proper tone lock from is (directly bore sighted towards) the sun. No adversary aircraft I tried will give a tone. The Missile Uncage button will not lock on a target either. The missiles sometimes track to the target from an exact bore sight. I'm flying a fully patched version 2.9.18.12899 MT. I suspect that this is a bug. I looked and could not find any way that the Viggen is misconfigured on my part.

[Zabuzard]

The recent update broke something on DCS engine side. This is a known (and already reported) issue, the team is investigating. Cheers

Edited August 11 by Zabuzard

[unclesneep]

Thought I was going crazy thanks

[CyberCopter]

On 8/10/2025 at 11:47 PM, Zabuzard said:

The recent update broke something on DCS engine side. This is a known (and already reported) issue, the team is investigating. Cheers

Thank you for taking the time to inform me. I tried pretty hard to search the internet and find this information. I appreciate the help.

[div0]

same issue

[Skyracer]

Expect at least 6 months before this is properly fixed.