After pressing f11 I would get a "blackscreen". If I pressed the fullscreen button I couldn't play Minecraft until I manually went into my option.txt and changed fullscreen to false.
I used f3 + c to cause the crash report after I pressed f11 and got the "blackscreen" I attached it here, thanks 🙂
Update I have switched to the regular Minecraft launcher and the same thing happened, here is a new report
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This ticket is invalid as it relates to a modded or 3rd party client/server.
Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft.
Duplicate of MC-5520.
I could not find any existing issue that contains any of the crashes mentioned here. However, all of the crash reports that you have provided are from a modded version of Minecraft. Please try to reproduce the crash in a vanilla (non-modded) version of Minecraft and attach that report or this may be dismissed as being caused by a mod. You can view all information known about this specific crash at MCX-355.