I've submitted a bug report on this too, glad to know I'm not alone.

what you all have been using trackir in .61? Lat version it worked for me was .59

In T121937#1544199, @huckjam wrote:

what you all have been using trackir in .61? Lat version it worked for me was .59

Yes, and it worked in .60 as well (though with a strange bug for me, lately, but that's another post)

Same for me.
Track IR don't work with 0.61 x64
It is ok with 0.61 x32

For information when launching dayz 0.61 x64 i have the msg :
[INFO] Blocked loading of file: "C:\Program Files (x86)\Common Files\Portrait Displays\Plugins\DP\MsgHook64.dll".

I don't have this msg with 0.61 x32

Same issue with me, working fine in the 32bit version, but not in x64.

Might it be that it's not implemented?

Except I'm running Windows 10 not windows 7

Same here, have worked in all previous builds, but not this new 0.61 x64 stable. Damn, almost gamebreaker for me...

Edit. with WIN10 x64

Same issue in Arma 3 x64 so hopefully someone in BIS will wake up and implement the changes needed as it seem Track IR it self should have the correct API's for 64 bit support as well.

Hey! i just today tested 64bit, and it works now!!

This case is closed.

...and not working again after 0.62.

Why ask to add these tickets when not even assigning these???