Hi @AutMark - Yes, I see the problem now. Because the table is editable, I think you were on the right track in your OP. It will be necessary to keep a complete data set updated with user edits in dcc.Store. Then you can use this intermediate data when filtering with the dropdowns.
It’s a little tricky to do that, but here is a thread that looks helpful: Detecting changed cell in Editable Datatable