I've been playing on Steam for some time and never noticed this issue. I went through the forums and tried everything suggest from other launcher problem threads. I have no Anti-Virus installed and windowns defender turned off. I have rebooted and reinstalled.

OS: Windows 7
Processor: AMD Phenom(tm) II X4 820 Processor (4 CPUs), ~2.8GHz
Memory: 8192MB RAM
Available OS Memory: 8192MB RAM
Page File: 7170MB used, 9210MB available
DirectX Version: DirectX 11

Here is a copy of the log file.

// Log File Created At: Tue Apr 18 02:12:17 2017
Tue Apr 18 02:12:17 2017 Xsyon Version: 20160820
Tue Apr 18 02:12:17 2017 Mode: Windowed
Tue Apr 18 02:12:17 2017 Data Initialized
Tue Apr 18 02:12:17 2017 Player Initalized
Tue Apr 18 02:12:17 2017 Creating Graphics
Tue Apr 18 02:12:17 2017 NVIDIA GeForce GTX 750 Ti
Tue Apr 18 02:12:18 2017 Start loading shader
Tue Apr 18 02:12:18 2017 base/scripts/hdr.fx
Tue Apr 18 02:12:18 2017 Load compiled shader
Tue Apr 18 02:12:18 2017 base/scripts/hdr_00000000_0_.fxc
Tue Apr 18 02:12:18 2017 Load shader ok
Tue Apr 18 02:12:18 2017 Success: Vertex Shader 2.0 Loaded
Tue Apr 18 02:12:18 2017 Success: Pixel Shader 2.0 Loaded
Tue Apr 18 02:12:18 2017 Start loading shader
Tue Apr 18 02:12:18 2017 base/scripts/color.fx
Tue Apr 18 02:12:18 2017 Load compiled shader
Tue Apr 18 02:12:18 2017 base/scripts/color_00000000_0_.fxc
Tue Apr 18 02:12:18 2017 Load shader ok
Tue Apr 18 02:12:18 2017 DirectGraphics Initalized
Tue Apr 18 02:12:18 2017 Recreate Effects start
Tue Apr 18 02:12:18 2017 Recreate Effects OK
Tue Apr 18 02:12:18 2017 Start loading shader
Tue Apr 18 02:12:18 2017 Terrain.fx
Tue Apr 18 02:12:18 2017 compile shader
Tue Apr 18 02:12:18 2017 CompileEffect error