Issues with JuliaPlots aspect ratio in 3d

I am using

plot(x,y,z,aspect_ratio=:equal,…)

Sometimes the aspect ratio “sticks” and sometimes it doesn’t. I am doing a day-long animation, and the aspect ratio jumps once every hour or two. For example, it’s fine at 8:00 AM:

image

but looks like this at 8:10 AM

Any advice?

I have a second issue, which is that the camera is too “zoomed-out”. A lot of the frame is wasted:

This is not fatal, just bothersome. I can fiddle with xlim/ylim/zlim, but I have them set as tight as I can make them without them starting to eat into the rendered objects.

Has anyone seen that behavior before?

Thanks,
Brad