I have been getting more and more reports of sync challenges from DianHua users. Most of them appear to be data that syncs correctly if I do so manually from the server so I believe we're dealing with performance and/or network problems.
Before I make any significant changes to the existing system to try to combat the problem, I am going to move the site to a new VPS provider. I started moving other systems to the new provider last week, and so far, performance is remarkably better so hopefully that will cure the problems in and of itself.
Thanks for your patience as I work through the challenges.