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  1. Minecraft: Java Edition
  2. MC-225853

Minecraft sometimes crashes when trying to start 21w20a for the first time

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: 21w20a
    • Fix Version/s: 1.17 Pre-release 1
    • Labels:
      None
    • Confirmation Status:
      Confirmed
    • Category:
      Crash
    • Mojang Priority:
      Very Important

      Description

      I tried so many times to run 21w20a in the launcher; but exactly when the game window opens, it instantly crashes and the Exit code would be shown as 0. And even when I press the "View crash report" Button, it shows an error with title "Could not open crash report".
      This is not only me who experienced this. Also 2 of my friends had the same result while running 21w20a. I thought the problem might be because of java 16 and I installed it manually, but it didn't affected. You can see the launcher screen and crash report .txt file from the attached files to this report.

      Description: Initializing game
      
      aa: Non [a-z0-9/._-] character in path of location: minecraft:dynamic/light_map_۱
      	at wr.<init>(SourceFile:41)
      	at wr.<init>(SourceFile:46)
      	at exf.a(SourceFile:137)
      	at emz.<init>(SourceFile:34)
      	at emt.<init>(SourceFile:278)
      	at duy.<init>(SourceFile:558)
      	at net.minecraft.client.main.Main.main(SourceFile:179)
      
      
      A detailed walkthrough of the error, its code path and all known details is as follows:
      ---------------------------------------------------------------------------------------
      
      -- Head --
      Thread: Render thread
      Stacktrace:
      	at wr.<init>(SourceFile:41)
      	at wr.<init>(SourceFile:46)
      	at exf.a(SourceFile:137)
      	at emz.<init>(SourceFile:34)
      	at emt.<init>(SourceFile:278)
      	at duy.<init>(SourceFile:558)
      
      -- Initialization --
      Details:
      Stacktrace:
      	at net.minecraft.client.main.Main.main(SourceFile:179)
      

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            Assignee:
            grum [Mojang] Grum (Erik Broes)
            Reporter:
            MoonMiner Mani Ehtesham
            Votes:
            1 Vote for this issue
            Watchers:
            4 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:
              CHK: