Same problem for me. Running Magento 2.2.6. I think these name are saved in anothere table. i will investigate next days
I finally found the root of the problem and a permanent solution!
All of the items, under the specific store views, used to have "Use Default Value" selected for all the fields. So when I edited anything under All Store Views, it would apply to all of the store views. For some reason, "Use Default Value" became deselected for several fields and I started having this problem.
Unfortunately, the only permanent solution I found requires running a few queries in the database directly. But it is a quick and easy fix that applies to all the items: https://magento.stackexchange.com/a/33373
Now that I applied this fix, all of my edits are saving and appearing correctly.
No meu caso eu consegui resolver mudando a visão de loja na hora de cadastrar ou atualizar produtos.