Superflat worlds stuck on the loading screen

We do not have enough information to find the cause of this issue.

Please attach the affected (zipped) world file. If the file size is too large, please upload it somewhere else and then link to it here.

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I have attached the files

The world loads fine for me.

NeunEinser idk if its something with my computer

If this happens, please attach the full launcher log found in [minecraft/launcher_log.txt|http://hopper.minecraft.net/help/guides/finding-minecraft-data-folder/].