I guess it will take a smart Microsoft rep to do as you say. Good luck with that. But...
How about...?...
(1) Right-click the folder, & select "Properties".
How many bytes does it have? Same number as in the test profile?
(I guess you have to sign in & out of each profile to get a proper reading.)
(2)
(a) Right-click the folder, & select "Free up space".
Now the files are online only (until accessed). What happened to the Status icon?
(b) Right-click the folder, & select "Always keep on this device".
Now they download again. Is the icon any better?
(3) Click the OneDrive icon in the Tray.
Does it look like there is ongoing activity...?...