So when I try to create a new world and open it in 1.17, everything goes fine until it gets to the part of "Saving World". From there Minecraft 1.17 stops responding and then crashes. I'm not sure if it's a bug that has to do with Mojang, though I was wondering if someone could help me troubleshoot it.
I added a video to help, half of the video is me waiting. When you see my cursor disappear at the Saving World part is when Minecraft stops responding. After I try to wait for it to respond, another message pops up prompting me to close the program for wait longer.
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There was no crash report and the launcher log is too big! What should I do?
Okay, I zipped the file.

This seems to be the issue at first glance:
[Info: 2021-06-10 17:38:41.4131755: GameCallbacks.cpp(162)] Game/dvo (Render thread) Fatal Unreported exception thrown!
java.lang.ArithmeticException: / by zero
at enf.a(SourceFile:1154)
at ena.a(SourceFile:1001)
at ena.a(SourceFile:806)
at dvo.f(SourceFile:1114)
at dvo.e(SourceFile:730)
at net.minecraft.client.main.Main.main(SourceFile:217)

Looks similar to MC-148866, can you try the fix described in this comment?

Sure, ill go try that.

Hmm, the frame rate is unlimited, ill go put it at a set number.

It worked! Thanks so much for your help!

Glad I could help. Until MC-148866 is fixed you will need to resort to this workaround in case it happens again.
We'll close your ticket as a duplicate.
If you would like to add a vote or any extra information to the main ticket it would be appreciated.
We do not have enough information to find the cause of this issue.
Please attach the crash report if one was generated, found in
[minecraft/crash-reports/crash-<DATE>-client.txt|https://minecrafthopper.net/help/finding-minecraft-data-folder/]
here.If you cannot find a crash report, please attach the full launcher log found in
[minecraft/launcher_log.txt|https://minecrafthopper.net/help/finding-minecraft-data-folder/]
.This issue is being temporarily closed as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.
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