today I noticed that the telephone signal did not take much, so I clicked, pressed the data network button, and opened the network settings, so I clicked the three dots on the top right. A setting has been issued with the name "Cellular Networks". After clicking it, I chose the "Network operator" entry. Here is a search for all the endless networks that no longer ends and I do not understand the reason sincerely. Now I have not yet managed to change operator by roaming
this is the first major bug.
The second is less and is graphic. That is when you want to turn on the data network, the icon moves and is dashed in the upper left corner. And if you turn off the data network return everything as before.
I will add a picture to show what I have supported.
I hope I was clear it coincided . Thanks for your attention