Thank you guys. I fixed it!
Just to make others know: I tried to downgrade to 4.0, but as stated from you is not a good option. Nothing has gone as expected. So I did what Marius suggest and everything worked smoothly. The .htaccess file was 0 bytes. Now with that script is 233 bytes.
Thank you a lot Marius, you saved my day! ??
Do you have any idea why the .htaccess file has gone with the update? I’m just curious.
PS. I’m gonna put back the manual update eheh