As @tonfilm mentioned in a public conversation on FB this could be described more as an additional feature for VAudio rather than an issue or a bug which would reset “properly” the Oscillators.
So what I was expecting to see (as in most vector synthesis examples) was a circle instead of an ellipsoid shape, which by chance it may be some times (randomly) a perfect circle, so dont be missleaded if it works fine the first time you will open it.
in synths, usually OSCs are free running and independent. what you are looking for is more one OSC with a sawtooth wave that you can use as global phase to apply to different functions, e.g. Cos and Sin in order to make a circle driven by the phase. so what you would need is a waveshaper with theses functions as option.
there is already a wave shaper, should be easy to add that there.
I am not sure that I am understanding what you say about the Sawtooth wave as for the waveshaper I think that the point is to use the OSC without re-formatting them. Can you please provide an example for these use cases ?
Thanks in advance!