And again, been working on this modpack for months now, have never seen this issue before, it hasn't happened from any mod I put into it. Literally the only things that have changed on the past 5 updates on the server were config file changes, to the server, and previously (before the spam even started so likely unrelated) some changes to metamorph and ore excavator configs.
But again, adding or removing mods didn't cause this issue, as I haven't added or removed any mods for several days and the issue started last night, after changing the server.proprties file.