Internal Atmos Renderer - wrong routing on 5.1 playback?

[kosmokrator]

So another 'interesting' issue.

We have a 7.1.4. studio that has PT HDX2 on 2024.6.
There's an external renderer that is connected via Dante as well.

Everything's working as expected when using the external renderer. When using the internal renderer, routing is working as it should when monitoring in 7.1.4.

When switching the internal renderer to 5.1 playback Ls and Rs are coming out of the rear speakers though.

If we change the channel order of the 5.1 subpath of the main 7.1.4 output, 'normal' 5.1 tracks and sessions don't work properly anymore.
The issue only seems to be with the 5.1 listening downmix of the internal renderer.
Again, with the external renderer, everything's working as expected.

Anyone seeing this as well?

[Led]

Working fine in my edit room at home, 7.1.4 array with renderer set to 5.1 monitoring. Win 10 PT Ultimate 2024.6 native