When attempting to apply resource packs onto worlds and starting up the world, the resource pack gets removed. This is also observable by applying a resource pack, exiting the screen and then going back to apply it again; you will see that the pack has been removed.
Cleaning up old tickets: This ticket has not been updated recently (1 year+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines.
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