Complex sentence: Not everyone in the expanding community had a problem with Hicks; at that point his community was so rapidly growing that many branched off into sects whose differences sometimes conflicted with one another, which greatly discouraged Edward Hicks from continuing to preach in the Quaker community.
Split into simpler sentences: Not everyone in the expanding community had a problem with Hicks; at that point his community was so rapidly growing that many branched off into sects. These differences sometimes conflicted with one another, which greatly discouraged Edward Hicks from continuing to preach in the Quaker community.