I made a plugin that keeps inventory when dying to pvp, could make it like saverod or just remake save rod for 1.14/1.15 etc.
This review probably explains the issue OP is having: Looking at the source, the issue is probably rooted in the plugin not clearing drops when setting keep inventory on the death event, as detailed in this post: https://www.spigotmc.org/threads/bu...evelopment-builds.369724/page-81#post-3491910
