I am not sure if this is related to something already mentioned, but in Krakatoa I sometimes use the scirpt function currentTime. in Genome, this scirpt will only update when I press the update button. Auto update seems to have no effect with it.
Confirmed.
You can work around it for now by adding a modifier that would affect the validity interval. For example add a Bend with keyframed angle but both keyframes set to 0.0 and your stack will be forced to update on every frame. This is of course a hack until we fix the code.
EDIT: It does not work much better in Krakatoa Magma either, it is just that most PRT sources update on each frame. So if you use that flow on a PRT Volume or a PRT Loader, the object updates on every frame anyway, and the Magma updates with it. But if you set a PRT Loader to “Load Single Frame Only”, it stops updating because the validity interval is set to “forever” and no updates are triggered unless you add some animated modifier on top.
Not sure if this will be considered a bug or a “known limitation” at this point… Stay tuned.