so i was playing on my world and earlier i was looking through the end. when i returned to the portal, i went in and as i went it i loaded into the overworld, i became stuck in mid air, unable to even interact with the items in my inventory such as my enderpearl. i tried reloading the world, the launcher, even my pc and i tried f3 + a to reload chunks and that didn't work. the main problem being none of the blocks/chunks had loaded so i was stuck in mid air. the only mod i am using is optifine for 1.15.2 so i dont think that is the issue. Is my world doomed or is there a fix?