Sea of Thieves Ancient Spire Potato Island | Anchor = Server Merge!
I know this isn't anything new, but this is the first time I had ever run into this issue: islands not loading. What was frustrating about this, is that I had spent quite awhile in Devil's Roar gathering up a cargo run to deliver it to Ancient Spire. Then this happens. DERP.
Also, proof in this video that dropping your anchor can cause a server merge!