@alexpacio2013 I don't know why Curviloft is behaving differently with that but I wouldn't have thought to use Curviloft. The native Follow Me would handle that just fine.
@Dave-R Got it! Thanks Dave...it did seem like overkill to lock both the viewport and the layers, but it seemed like one of my viewports was shifting (even though camera positions weren't changed) and I thought maybe I had been double-clicking into the viewport(s) w/o realizing it. Still not sure what I did, but it seems to be working now.