Experienced a full-on crash when attempting to open a large chest on my MP server (recently also upgraded to 1.4.6).
Possibly relevent since it's trying to get mouse position—on an MBP Retina display 2880x1800 with an external monitor attached. I was running the Minecraft window on the Retina monitor however at the time of crash.
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Ah, so it is.
Also, the issue appears to have gone away after trying again. However, since the update, chests take significantly longer to open (sometimes 3-5 seconds).
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