System Information
OS: Arch Linux x86_64
Kernel: 5.0.2-arch1-1-ARCH
Uptime: 1 day, 3 hours, 25 mins
Packages: 2070 (pacman)
Shell: bash 5.0.2
Resolution: 1920x1080, 1920x1080, 1920x1080
DE: Xfce
WM: Xfwm4
WM Theme: Microcurve
Theme: Xfce-dusk [GTK2], Breeze [GTK3]
Icons: Arc [GTK2], breeze [GTK3]
Terminal: xfce4-terminal
Terminal Font: Source Code Pro 10
CPU: AMD Ryzen 7 2700X (8) @ 3.200GHz
GPU: NVIDIA GeForce GTX 1050 Ti
Memory: 6554MiB / 64420MiB

Blender Version
Broken: cycles on 2.80 - 2019-03-16 - cc5bdf029324

Short description of error
When the window is floating and moved to another monitor, the render preview results distorted.

Exact steps for others to reproduce the error

1. Enable "Region Overlap" on the settings
2. Set Cycles as render engine
3. Float the 3D view to another monitor (doesn't happen on a single monitor)
4. Enter render view
5. Zoom in and out. Closer to the object happens more frequently. Or also move around the objects if not in camera view.

Here a video briefly showing what happens:
https://youtu.be/OvkfDktpZ-Y