I can't play any 1.14 snapshot , the game allways keep crashing and never opens up the game. I tried do change JVM arguments to -Xmss320K and it opened once on 18w45a, but too laggy, and with 18w46a it dosn't work. I click play with normal JVM arguments, it loads, and I got a message: "The game stop working."
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[media]

Please do not mark unreleased versions as affected.
You don't have access to them yet.
See MC-137353.

It's working, a lot laggy, but working. Just change JVM arguments from -Xmx1G to -Xss320k

Try -Xmx3G