Question: I have installed the latest Elementary OS Loki Release (not a BETA version). Sometimes when the system wakes up from sleep, after I log in, I see this behavior of the system. Almost all the text is gone as you can see in the picture: The Application Menu, System Settings, Notifications bubbles, Terminal, Files, (all apps). The problem is solved when I reboot the OS.

P.S. I mention that I installed elementary tweaks from [this github project](https://github.com/elementary-tweaks/elementary-tweaks), but I don't think that it has to do with this bug.

So how can I solve this problem? Is it a known bug that will be solved in some future updates? Can it be a graphics driver issue?

[![enter image description here](https://i.stack.imgur.com/c21Hl.png)](https://i.stack.imgur.com/c21Hl.png)

Answer: 
To fix this issue you need to **kill/close** pantheon-mail and then run the command

> 
> **dconf reset -f /org/pantheon/mail/**
> 
> 
> 

I believe this is only a temporary solution. If you have Elementary Tweaks installed you can add that command to **Cerbere** so is constantly running in the back.
I had the same issue. I replaced the window and resized it first vertically, which really goes slow. (only some pixels a second) When the window had the correct width again, I could resize it easily to the normal height.