[Michele Verardi]

Thanks for the fast response!
Unfortunately I tried what you suggested but the problem remains. However I found a possible solution (or at least the reason why it bugs). The video is an interview shot with a lavalier microphone. There are two or three times where the interviewed coughs creating extreme noise and huge clipping peaks. It’s after the playback of these peaks that the limiter fails to correctly interpretate the remaining waveform, thus generating incorrect volume level. It’s like the gap between the clipping peak and the other peaks is too much to handle for the effect. Removing the effect and adding it again is enough to make it work, as far as I don’t playback the extreme peaks a second time. I’m still guessing how to avoid the problem apart from excluding the “cough peaks” from the timeline.