UPDATE: It was the bungee plugin UltimateReports that is the culprit. I've notified the author.
I (first) noticed this about a week ago, after I took the proxy to 1.9.4 (my spigots are 1.9.2) so that I could use ViaVersion on my spigot hub and other servers.
Thinking it was that, I took out via version out of the spigot hub, and put the proxy back on 1.9.2. The issue remained. That being said, I at this point don't know how long this has been going on because I only recently...
SOLVED - Disconnected Players Bodies Remain on Server
I (first) noticed this about a week ago, after I took the proxy to 1.9.4 (my spigots are 1.9.2) so that I could use ViaVersion on my spigot hub and other servers.
Thinking it was that, I took out via version out of the spigot hub, and put the proxy back on 1.9.2. The issue remained. That being said, I at this point don't know how long this has been going on because I only recently...
SOLVED - Disconnected Players Bodies Remain on Server