Hey everyone, some good news:
Graphical issues experienced for those using the latest AMD Drivers have been resolved with the latest AMD Driver release (18.2.1).
You can read more about the release here:
https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Adrenalin-Edition-18.2.1-Release-Notes.aspx
Thanks for your patience, and we hope you enjoy playing Re;Birth1!