I have this problem on my server that potion effects is acting veery strange and i found this post http://www.spigotmc.org/threads/potion-effects-acting-weird.2302/ And to disable NETTY that is supposed to fix this problem i need to add -Dorg.spigotmc.netty.disabled=true to my startupscript anyone know where the startupscript can be found in McMyAdmin ?
running the lates Build of Spigot and the potion is still flickering found out how to disable netty on my testserver that dose not run McMyAdmin and after i did that it worked .. so i guess it is not fixed .. wuld be nice if i dont need to disable it i have tested with Craftbukkit and it works without any problem there ! Spigot Build: 903 Crafbukkit: 2783