I use Java Edition and allocated the max amount of RAM that it let me (Which was over 10GB) and it still crashed every time I loaded the modpack. It always crashed on JEI loading in the finishing up section (6/7).
https://gist.github.com/23KiaraMinecraft/7e0c4d5f72801cf9d4a17d6c58dba9ba

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Thanks for the report!
Try setting this to true in JEI's jei-client.toml config file:

    #Set low-memory mode (makes search very slow, but uses less RAM)
	LowMemorySlowSearchEnabled = false

Thanks for the feedback. I've actually fixed the problem. I got a better computer and it runs smoothly now.

Ok, glad to hear it worked out