Problems With The Characteristics Of Goods 4.1.2

Good afternoon.

After updating 4.0.3-4.1.1-4.1.2 you add an item to see the characteristics of steel display characteristics for all categories of the store, which makes it impossible to add new products, as the characteristics of about a thousand.

I think this is a critical error, which makes it impossible to continue to work with the store and ask to fix as soon as possible.

Who faced the same problem?