Windows 10 64 bit, R9 380 Radeon Graphics card
Short description of error
Eevee giving off weird shadows in unrealistic ways.
Exact steps for others to reproduce the error
Start blender 2.8, put plane under default cube. Move light (set there by default) to cube's top surface, and move the light around. Shadows become glitchy. I have attached a video of me doing this.