[Crash] java.lang.NullPointerException - Crash when killing the enderdragon in other dimensions via custom world

Swapping json data for dimensions via custom world breaks portals

minecraft:addrider fails to work properly with horses

minecraft:break_blocks has slowdowns with large "breakable_blocks" list

Functions break when making blocks while chunks are being generated

Erroneous syntax error when using /execute with detect

Particles created by the Ender dragon causes all systems to lag significantly

Repeatedly dying and returning to the End causes problems

Windows 10 and Chromebook cannot connect to world properly!

Rapid damage with magma blocks and command block

Rendering too many particles causes the game to lag

Nether portal does not operate properly

Player spawns above snow

Deleting every single block in a minecraft world causes problems

Blocks don't properly update