Wouter Lichtenbelt

That seems to have done the trick. Thanks!

Is there a reason why the velocity field is not affected by the timescale in the solver? I was expecting it to be?

tamte
Your best bet would be to use Advected mode and making sure you have correct vel volume present in your cache

By correct I mean that it represents velocity per second at the current FPS

For example things like simming with timescale other than 1 would produce incompatible vel for retiming ao that would need to be reflected in the settings by scaling it accordingly for advection purposes

By using a timescale on my sim, would there still be a way to get the correct velocity out? Or would there be no other option than to set the timescale to 1?

Tanto
One tip is to never have a mix of blended and unblended frames, so make sure your retime coefficient never results in integer frames from the original sequence.

I have already given that a go in the results above, where the retime frames would never land on frames like 1001, 1002, etc. Unfortunately, that hasn't fixed the problem.