DaemonUmbra

If you're only updating to recommended versions you're missing out

@gette Delete forge-client.toml and try again @ToxicGold180 Your issue is completely unrelated and doesn't even involve a supported version, please update and make your own thread to receive support.

Given that it's the featuremanager complaining I'd guess it's something about worldgen configs in a datapack being wrong or missing

Please don't necro old threads. The backup process is there for a reason and we don't add an option to disable it because we have seen people shoot themselves in the foot before.

Try running the installer for a supported version via a terminal window, and provide the output

Do you have any other antivirus software, like Malwarebytes or Avast?

Any mod could do that, you could even do it with the command you're using to get the info. Find out what mod is responsible for the method by which you obtained the diamond that is not like a diamond spawned with /give

It's been fixed on GLFW's end, just waiting for the updates to trickle down to LWJGL and Mojang now

1.7 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Is it exceeding the amount of memory you are allocating to it? Is it causing the game to be unplayable for some reason?

Please provide debug.logs from both server and kicked client, using one of the paste sites listed in the "Logs" section of my signature below, just expand the spoilers.

Go to %LocalAppData%/Temp and delete any folders starting with forge_installer, then try again

Please provide a screenshot of your launcher

Have you tabbed out during the loading process? If so, try not doing that

That's the new warning that it's not a vanilla version of the game

1.7 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Please provide debug.log (more info on where it is and how to provide it in my signature below, just expand the spoiler)

Try reinstalling Java

Are there any hs_err_pidXXXXX files next to the installer?

Have you tried disabling it when running the installer?

What do you have for antivirus?

Do you have an antivirus that might be blocking Forge's installer?

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Please provide debug.log (more info on where it is and how to provide it in my signature below, just expand the spoiler)

Seems Bedrock Edition has skins that change your model and not just the texture.