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
Linked issues
duplicates 1
Comments 2

The underlying issue is MC-81075.
Bypass: you can add "RadiusPerTick" to your command with a very low number (e.g. 0.000001f ) to force an update.
It's only a work around, but it should fix it until the bug is solved
see: MC-86429