Crash when using spawned in firework / Server kicks you with an End of Stream error

When a spawned in firework is launched the server kicks with End of stream and can not reconnect until entity is despawned.
java.lang.NullPointerException
at ef.a(SourceFile:310)
at mj.a(SourceFile:237)
at mj.a(SourceFile:157)
at et.a(SourceFile:36)
at ef.a(SourceFile:214)
at cg.h(SourceFile:178)
at cg.d(SourceFile:15)
at ci.run(SourceFile:114)