Ticking entity (ender dragon) / IllegalStateException: Removing entity while ticking
While checking the DragonPhases for bugpost MC-147152, I summoned 4 dragons, after that I crashed with "Ticking entity".

Upon re-entering the worldsave, I crashed again:
Exception stopping the server java.lang.IllegalStateException: Removing entity while ticking! at ve.h(SourceFile:958) at ve.e(SourceFile:975) at xo.c(SourceFile:336) at vw.a(SourceFile:1011) at ja.l(SourceFile:401) at agb.f(SourceFile:75) at vw.b(SourceFile:281) at xo.s(SourceFile:756) at net.minecraft.server.MinecraftServer.l(SourceFile:554) at dwo.l(SourceFile:251) at net.minecraft.server.MinecraftServer.run(SourceFile:663) at java.lang.Thread.run(Unknown Source)
Created Issue:
Ticking entity (ender dreagon)
While checking the DragonPhases for bugpost
MC-147152, I summoned 4 dragons, after that I crashed with "Ticking entity".
Ticking entity (ender dreagon)
While checking the DragonPhases for bugpost
MC-147152, I summoned 4 dragons, after that I crashed with "Ticking entity".
While checking the DragonPhases for bugpost
MC-147152, I summoned 4 dragons, after that I crashed with "Ticking entity".
Upon re-entering the worldsave, I crashed again:
Exception stopping the server java.lang.IllegalStateException: Removing entity while ticking! at ve.h(SourceFile:958) at ve.e(SourceFile:975) at xo.c(SourceFile:336) at vw.a(SourceFile:1011) at ja.l(SourceFile:401) at agb.f(SourceFile:75) at vw.b(SourceFile:281) at xo.s(SourceFile:756) at net.minecraft.server.MinecraftServer.l(SourceFile:554) at dwo.l(SourceFile:251) at net.minecraft.server.MinecraftServer.run(SourceFile:663) at java.lang.Thread.run(Unknown Source)
While checking the DragonPhases for bugpost
MC-147152, I summoned 4 dragons, after that I crashed with "Ticking entity".
Upon re-entering the worldsave, I crashed again:
Exception stopping the server java.lang.IllegalStateException: Removing entity while ticking!at ve.h(SourceFile:958) at ve.e(SourceFile:975) at xo.c(SourceFile:336) at vw.a(SourceFile:1011)at ja.l(SourceFile:401) at agb.f(SourceFile:75) at vw.b(SourceFile:281) at xo.s(SourceFile:756) at net.minecraft.server.MinecraftServer.l(SourceFile:554) at dwo.l(SourceFile:251) at net.minecraft.server.MinecraftServer.run(SourceFile:663) at java.lang.Thread.run(Unknown Source)While checking the DragonPhases for bugpost
MC-147152, I summoned 4 dragons, after that I crashed with "Ticking entity".
Upon re-entering the worldsave, I crashed again:
Exception stopping the server java.lang.IllegalStateException: Removing entity while ticking! at ve.h(SourceFile:958) at ve.e(SourceFile:975) at xo.c(SourceFile:336) at vw.a(SourceFile:1011) at ja.l(SourceFile:401) at agb.f(SourceFile:75) at vw.b(SourceFile:281) at xo.s(SourceFile:756) at net.minecraft.server.MinecraftServer.l(SourceFile:554) at dwo.l(SourceFile:251) at net.minecraft.server.MinecraftServer.run(SourceFile:663) at java.lang.Thread.run(Unknown Source)
Ticking entity (ender dragon) / IllegalStateException: Removing entity while ticking
duplicates
Dragons getting positioned at NaN seems only to apply to dragons summoned without a DragonPhase, not to those with.
While checking the DragonPhases, I summoned 4 dragons, after that I crashed with "Ticking entity" (MC-147217)

Seems to be a duplicate of
MC-90423.[Mod] Asteraoth Thanks for the info!
In that case, confirmed for 19w13b.