Project hierarchy has been flattened


I had divided 50 projects into 15 sections in the Teams for Education (TfE).
However, when I opened TfE today, section information is all gone.
Would you please check what happened?
I’m updating all the projects now and here is how it looks like when I added Section01 for three projects.

For each project, added back the section information and this is how it looks like now.
Hope it will not get scrapped again.