When using the command

summon AreaEffectCloud ~ ~1 ~ {Radius:0.001f,Duration:2147483647,Particle:"take",CustomName:"tracker"}

To create an AreaEffectCloud, you can see the entity using F3 + B. When you teleport the entity using the command

tp @e[name=tracker,type=AreaEffectCloud] TerrorByte

The hitbox stays in one place, although you can use the command

execute @e[type=AreaEffectCloud,name=tracker] ~ ~ ~ fill ~ ~-1 ~ ~ ~-1 ~ minecraft:stone

To see the blocks below you get turned to stone

EDIT: Video Here
https://youtu.be/i_ksR1sLbY0