I hope this is fixed soon because I only play on one world. Its my forever world and even if remove/uninstall the addons and reinstall them it still happens. Plus it crashes the game when I hit save and exit which can be dangerous and cause corruption.
the issue only occurred after minecraft was down and got the update yesterday.
I also tried downloading the world from a backup file and the same issue is present. I keep backup in case of corruption but this seems to a minecraft graphics bug.
*A lot not little amount of addons*
Yes I've always had it enabled. Turning it off improved the fps. Much appreciated