Have you tried to use the delete and re-build option when packaging?
Thanks Clint, I hadn't thought to try different packager options. That did the trick. I was a bit worried that using that option would re-designate the whole design (something you woudln't want to do, most times), but that is controlled by the "Operation:" drop-down.
I guess it makes a bit more sense when I think about it now, but it still seems that Dx likes to "hold on" to stuff, more so than I'd prefer.
Thanks for you input, I've given you credit for the answer.
I know what you mean, I was afraid it would delete my placement in the PCB the first time I used that option. Now I use the delete and rebuild option every time.
i think it will be difficult if we want to update any properties which have block value with the schematic values
wt i do is i will edit this symbol, i will save a copy of that symbol with another name
and in the schematic editor i will select the parts to be modified and i will replace that part with the new one, then it will update with all the attributes to the symbol level