A picture is worth more than 1000 words so…
When doing any process. plugin VST or offline. Normalize, change gain… affects that other region despite being clipped and even on another track.
The first example works fine but I don’t know what happens with the other part…
Any idea why??
If I understand correctly: You indicated in the upper right corner that the area on the left outside of the marking should also be changed. Namely by the value of 9,900 ms = 9.9 seconds. You instruct Nuendo with the 9,900 ms to process outside of the marked area as well.
Set that to 0 ms and try again.