thank you for reaching out to us. First of all I would like to point out that the support cycle of Cinema 4D is two major versions. We however take it as a compliment that you consider Cinema 4D being so stable to having such long lasting backwards compatibility ;) But there were of course some changes over the course of the years which did break some compatibilities, including the sound effector.
Regarding your last question:
If we base on the sound effector, and the waveform on the timeline, the offset does not work apparently, or am I missing something?
As this clearly falls into the domain of the end-user support, I would have to ask you to contact them about it.
Thank you for your understanding,