The change in your dream might be part of the process of grieving the loss of your daughter. Having a daughter you had continued the female lineage, so to speak and now that she is passed you may be feeling less of a connection to your own mother. That would seem natural.
In the first dream, you not being in touch with your mother seemed to be your choice and in the second, hers. As I have gotten older, I have had to grieve a loss of control, which was really only an illusion in the first place.
If you have the dream again, you might notice how it changes.