The decay timer issue could be a bug. I’ve heard of decay issues on occasion. The thralls, as I’ve said, I can’t confirm if they’re not spawning today since I haven’t been there today. I can however confirm that there were no issues with them as of a few days ago. I saw 3 or 4 named thralls and even got one of them for another clan.

If your bases are decaying too rapidly, I recommend submitting a report to zendesk. They can look into the issue for you. That could be a totally isolated issue.