Are you saying the option to change them does not come up for you, or the changes don't stick? I don't have that rom on now, but I will put it on tomorrow and check it out.
I could not change them either when I was using this rom(I've been changing them up trying out all the different ones here and currently have AMDZero's Sense rom), I could long tap them and then click "edit" but it would not do anything else, I tried the fixes you have listed earlier in the thread to no avail, a shame because I like the samsung today screen better than the widget one or sense.
I do love how lightly your rom runs however, with iphone today home screen it was showing 91mb of ram after a restart and always stayed high. I just wish this were on 6.5.5 that has the windows and ok button at the bottom or whatever version that is(I'm still new to all this).