We've been happily using Tabular Display Folders to organize dimensions and measures into groups for display in Power BI. This used to work just fine in both Desktop and Web, but no longer; measures are now moved out of Display Folders and show at the top level.
As an example, here's a view in the Desktop (everything is fine):
.. and here's the same thing on the Web (not fine - all items with a Calculator icon have been moved out)
Hope this can be addressed.