I don't even have the buckler in my inventory/out

https://spark.lucko.me/AQr8WpLOln

On first glance this seems to be a weird product of Apotheosis’ own features, but I’d need the full spark log link to fully investigate this

Is there a chance you can test this .jar file out to see if lag is reduced by recent changes I've implemented in development? Thanks. (note: .jar's in the zip folder)
piglinproliferation.zip

https://spark.lucko.me/bEwh9v5fN8
this patch has fixed the issue, I also tested the brute bashing the player and the player using the buckler; no crashes