I upgraded Magento to 2.2.9 and now I can't select Tax class for any product - When I try to add new product, there is no such option. When I duplicate old product, attributes and Tax classes duplicates well (tax is ok, but still isn't visible in admin).
Now, when I have to change tax class for a product, I need to edit values in the database (value at catalog_product_entity_int).
I tried to disable modules, reindex, change attribute sets etc, but nothing… On my test site (this same configuration and modules) everything is ok.
