This is my Realm Server. I made trident missle like this.

1. execute as @e[type=trident,nbt=\{inGround:1b}] at @s run summon minecraft:creeper ~ ~ ~ {Fuse:0,ExplosionRadius:3} (Repeat)
2. execute as @e[type=trident,nbt=\{inGround:1b}] at @s run particle minecraft:explosion_emitter ~ ~ ~ (chain)
3. execute as @e[type=trident,nbt=\{inGround:1b}] at @s run kill @s (chain)

When I shoot trident vertically up to down , this issue is occured with a small chance in that area.

Link: https://youtu.be/z-OHmcADd3E