The JVM crashes if I stream Minecraft through Discord while I'm on a dedicated server. This doesn't happen in singleplayer, or if I share my whole screen on Discord. Only whenever I stream specifically Minecraft does it crash.
This also doesn't happen on Linux, according to a friend of mine who is on Linux, so it appears to be a Windows only bug. It's incredibly frustrating, nonetheless.
I can't directly upload the video here as it's greater than 10 MB, so here's a link to it:
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