I am building on a map for 1.16 and encountered a weird bug with the commend 
"teleport [Name] ~ ~ ~ ~ ~" in a datapack... My goal was a screen animation for imersion
The whole line goes having multiple teleports where I change the X and Y rotation slightly to create a shaking screen that can be moved.
The whole File goes like this 

File 1:

schedule function <File2> 4
execute as @a run teleport @s ~ ~ ~ ~1 ~3

This runs the next file 

File 2:

schedule function <File3> 4
execute as @a run teleport @s ~ ~ ~ ~-2 ~-1

and so on

File 3:

schedule function <File4> 4
execute as @a run teleport @s ~ ~ ~ ~3 ~1

until it loops again unless a certain timer is reached... But... This warps you onto the worldspawnpoint for every function after the 1st, which is really annoying