When explosion_14 not loaded. It may unused when you not see the function of explosion particles.
It keeps making explosion particle texture fast.
Steps to reproduce:
/give @p repeating_command_block
Get a lever in creative
Place a repeating command block
Put lever on atop of command block
Right click the command block and use this "/particle explosion ~ ~ ~"
Right click a lever and start look at the particle if you use the "TEST" resource pack.
Make your resource pack named "TEST" and make it non-transparent and see in-game and don't forgot to get a resource pack and load it.
Please attach the resource pack here