Sorry, I should have written that out in full. AS = Ancestral Sources Data Entry, a plugin for FH (Family Historian):
I have just one individual with this situation. I have entered the whole family using Ancestral Sources Data Entry in Family Historian. So far as I can see the entries for the 1841 Census in the Gedcom file are identical. However the 8m old son is showing as having no country Census country for the 1841 census. He is the only entry in the whole file where FTA is reporting this problem.