Hi Flavio and thnx for the fast answer.
All Plugins (tracks and groups) show latency in the effect properties box. N-Track compesate it perfectly in live playing.
Izotope Plug-ins in master show 8 - 20 ms latency. Another plugs reach 40 ms but N-Track runs fine with all of them.
After removing the izotope effects in the Master Aux Channel, “Process and Bounce” works perfectly on individual tracks. The problem is now in the group tracks.
There are two ways to apply the effects on a Group Track using “Mixdown Song”.
- Mix the song and selecting the tracks to mixdown (in the Track to Mixdown box)
- mixing the whole song and clicking Solo in the concrete group track to render, so that only that group is actually being mixed.
In both ways I get the same delay in the position of the new group track mixed. The only one way that have to get the new mix track placed in the right position is removing many/all other tracks from the song.
It´s clear that the problem is related to the use of effects in the other group tracks. What I don´t undestand is why is this happening if the otrher group tracks are no being involved in the rendering.