I’m not sure if this is a bug or if I’m not doing something right. I’m trying to modify a lattice using proportional editing, but it just seems to ignore it. It’s weird. I had the problem yesterday, and it magically went away–I don’t know how. I even went to the *.blend file that I was using when it was working, and it isn’t working now.
Make sure the field of influence (or whatever the circle that appears for proportional editing is called) is large enough to encompass the points you want to have affected. To resize the influence, press Page Up or Page Down after you have press G, S, or R to transform the selected point. Note: I am tired right now and do not know if the proceeding makes any sense. If it does not, I will try again tomorrow.