I couldn't reproduce it but when the world loaded 100%, it crashed.

Crash report:

---- Minecraft Crash Report -------- Minecraft Crash Report ----// This is a token for 1 free hug. Redeem at your nearest Mojangsta: _HUG~
Time: 1/12/19 6:06 PMDescription: Ticking block entity
java.lang.IllegalArgumentException: Cannot get property bqw{name=enabled, clazz=class java.lang.Boolean, values=[true, false]} as it does not exist in Block{minecraft:dirt} at bqd.c(SourceFile:95) at box.a(SourceFile:117) at box.aa_(SourceFile:108) at bcf.m_(SourceFile:1076) at ut.m_(SourceFile:308) at net.minecraft.server.MinecraftServer.b(SourceFile:825) at net.minecraft.server.MinecraftServer.a(SourceFile:754) at drg.a(SourceFile:128) at net.minecraft.server.MinecraftServer.run(SourceFile:620) at java.lang.Thread.run(Thread.java:745)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Server threadStacktrace: at bqd.c(SourceFile:95) at box.a(SourceFile:117) at box.aa_(SourceFile:108)
– Block entity being ticked --Details: Name: minecraft:hopper // box Block: Block{minecraft:dirt} Block location: World: (1662,2,-1104), Chunk: (at 14,0,0 in 103,-69; contains blocks 1648,0,-1104 to 1663,255,-1089), Region: (3,-3; contains chunks 96,-96 to 127,-65, blocks 1536,0,-1536 to 2047,255,-1025) Block: Block{minecraft:dirt} Block location: World: (1662,2,-1104), Chunk: (at 14,0,0 in 103,-69; contains blocks 1648,0,-1104 to 1663,255,-1089), Region: (3,-3; contains chunks 96,-96 to 127,-65, blocks 1536,0,-1536 to 2047,255,-1025)Stacktrace: at bcf.m_(SourceFile:1076) at ut.m_(SourceFile:308)
– Affected level --Details: Level name: New World All players: 0 total; [] Chunk stats: ServerChunkCache: 2025 Level seed: 8132232135125709161 Level generator: ID 01 - flat, ver 0. Features enabled: true Level generator options: {biome:"minecraft:plains",layers:[

Unknown macro: {block}

,{block:"minecraft:dirt",height:2},{block:"minecraft:grass_block",height:1}],structures:{village:{}}} Level spawn location: World: (1663,4,-1131), Chunk: (at 15,0,5 in 103,-71; contains blocks 1648,0,-1136 to 1663,255,-1121), Region: (3,-3; contains chunks 96,-96 to 127,-65, blocks 1536,0,-1536 to 2047,255,-1025) Level time: 861062 game time, 452969 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 169771 (now: false), thunder time: 56570 (now: false) Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: trueStacktrace: at net.minecraft.server.MinecraftServer.b(SourceFile:825) at net.minecraft.server.MinecraftServer.a(SourceFile:754) at drg.a(SourceFile:128) at net.minecraft.server.MinecraftServer.run(SourceFile:620) at java.lang.Thread.run(Thread.java:745)
– System Details --Details: Minecraft Version: 19w02a Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1136918536 bytes (1084 MB) / 1811939328 bytes (1728 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Player Count: 0 / 8; [] Data Packs: vanilla Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.