[MC-296132] Minecraft Java Edition will not launch after pressing the play button on versions 1.21.1 and later.

When trying to launch the latest version of Minecraft, 1.21.5, nothing occurs and only the desktop can be seen. Looking at the task manager shows an OpenJDK Platform Binary taking up a lot resources. The output log shows being stuck on Backend library: LWJGL version 3.3.3+5.

Linked issues

duplicates 1

MC-296200 Minecraft does not launch when MSI Afterburner and Rivatuner (RTSS) is open Open

Attachments

Comments 8

Thales Vilela 2025-03-31T21:52:00Z

I had the same problem and I solved it using a mod launcher (CurseForge). If I find a way in vanilla I'll send it here.

Dredd20 2025-04-01T06:18:37Z

Thanks for the info, hopefully Mojang will fix this issue in an update. I’ve tried uninstalling java and Minecraft and reinstalling but nothing seems to work.

[MOD] Greymagic27 2025-04-01T18:38:06Z

I see a mention of an invalid registry key. Please try making a new windows user and playing the game from there.

Dredd20 2025-04-01T20:03:27Z

I’ve gone through and resolved the registry error but the issue still persists. I’ve attached the output log to what it now shows. A workaround that I’ve found is that I’m able to launch versions 1.21.1-1.21.5 through a mod launcher like Thales stated, I specifically used Modrinth.

[media][media]

[MOD] Greymagic27 2025-04-01T20:05:22Z

Please try on a new windows user and see if the issue persists

Dredd20 2025-04-01T20:30:44Z

Hello Greymagic27, I did what you asked and created a new windows user on my PC and installed Minecraft, and surprisingly, 1.21.5 worked on boot. I was able to play the game with no issues. I’m interested to know why exactly does this solve the issue though and does that mean I have to transfer all my info on my original windows account to this new one.

Dredd20 2025-04-03T01:17:37Z

Hi everyone, I’ve apparently found the source of my issue of why Minecraft wasn’t launching. If you have either MSI Afterburner or RivaTuner Statistics Server. These two programs will prevent the latest version of Minecraft from running once you press play. I was using RivaTuner as a frame limiter for some other games but when I closed it and launched 1.21.5, The game booted up with no issue whatsoever.

Jarl-Penguin 2025-04-03T20:06:34Z

Thank you for your report!
We're resolving and linking this ticket forward as a duplicate of MC-296200, as that ticket contains more detailed information and/or has already been triaged by Mojang.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

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