Unknownreported this bug
it seems to only happen when i set PreventBlockInfection to true which caused the silvers fish to spawn support from an infested block infinitely which the new silver fish then also do on death or takking damage. plugin version is v4.14.1 heres is a video of me recreating the incident: https://www.youtube.com/watch?v=fGW87cKFzik&ab_channel=Monday sorry for listening to a shitty remix.