Version: v1.13.4 (Stable)10/23/2020 1:19:08 PM: Critical error occurred System.Exception: GL_INVALID_VALUE error generated. Program handle does not refer to an object generated by OpenGL. at Vintagestory.Client.NoObf.ClientPlatformWindows.DebugCallback(DebugSource source, DebugType type, Int32 id, DebugSeverity severity, Int32 length, IntPtr message, IntPtr userParam) at OpenTK.Graphics.OpenGL.GL.GetUniformLocation(Int32 program, String name) at Vintagestory.Client.NoObf.ShaderProgram.Compile() at Vintagestory.Client.NoObf.ClientPlatformWindows.Start() at _lYLQLGyldvbDG9rPQyiRVeIqQVp._EEzpApWBQHtHR4iMJabXK2wDvlA(_ex0VSgRAdtsvhANmJHZHaf9ATWt , String[] ) at _IcGByoJhapvESnm6vaOawAHbkeU._EEzpApWBQHtHR4iMJabXK2wDvlA(ThreadStart ) ------------------------------- Version: v1.13.4 (Stable)10/23/2020 1:19:25 PM: Critical error occurred System.Exception: GL_INVALID_VALUE error generated. Program handle does not refer to an object generated by OpenGL. at Vintagestory.Client.NoObf.ClientPlatformWindows.DebugCallback(DebugSource source, DebugType type, Int32 id, DebugSeverity severity, Int32 length, IntPtr message, IntPtr userParam) at OpenTK.Graphics.OpenGL.GL.GetUniformLocation(Int32 program, String name) at Vintagestory.Client.NoObf.ShaderProgram.Compile() at Vintagestory.Client.NoObf.ClientPlatformWindows.Start() at _lYLQLGyldvbDG9rPQyiRVeIqQVp._EEzpApWBQHtHR4iMJabXK2wDvlA(_ex0VSgRAdtsvhANmJHZHaf9ATWt , String[] ) at _IcGByoJhapvESnm6vaOawAHbkeU._EEzpApWBQHtHR4iMJabXK2wDvlA(ThreadStart ) -------------------------------