I receive the same error. Someone told me it had to do with the news feed on the start page and that I should use my antivirus to block connections to and from
www.yoyogames.com/news/*. I tried that, but it did not work. I also opened a bug with my UI.log. Here is mine. Very similar to yours. I am on Windows 7 64-bit:
[11:08:08:808(2e10)] ************************************** 05/11/2017 **************************************
[11:08:08:808(2e10)] Log.Initialise
[11:08:08:824(2e10)] OpenGLCheck : Original Version String is "2.1.0 - Build 8.15.10.2104"
[11:08:08:824(2e10)] GameMakerStudio, Version=2.0.6.136, Culture=neutral, PublicKeyToken=83c29ed24e39e35e
[11:08:08:824(2e10)] Initialise()
[11:08:08:933(2e10)] Unable to load DLL 'CSteamworks': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
[11:08:08:948(2e10)] File exception 'Could not find file 'C:\ProgramData\GameMakerStudio2\Cache\Survey\surveys_done.json'.'
[11:08:09:104(2e10)] File exception 'Could not find file 'C:\ProgramData\GameMakerStudio2\Cache\Survey\survey_dismiss.json'.'
[11:08:09:198(2e10)] File exception 'Could not find a part of the path 'C:\Program Files\GameMaker Studio 2\user_cache_directory\Styles'.'
[11:08:09:354(2e10)] File exception 'Could not find file 'C:\ProgramData\GameMakerStudio2\org_settings.json'.'
[11:08:09:354(2e10)] File exception 'Could not find file 'C:\ProgramData\GameMakerStudio2\machine_settings.json'.'
[11:08:10:602(2e10)] Laptop: Yes
[11:08:10:618(2e10)] Using Windows 7 or earlier, Graphics Tablet Manager is active
[11:08:10:618(2e10)] Graphics Tablet FAILED Is Wintab Available (1): Unable to load DLL 'Wintab32.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
[11:08:10:618(2e10)] WinTab is not available.
[11:08:10:805(2e10)] Checking network....
[11:08:11:429(2e10)] Checking network....Done
[11:08:11:476(2e10)] Shader 'layer_normal_blend_shader' loaded.
[11:08:11:491(2e10)] Shader 'layer_multiply_blend_shader' loaded.
[11:08:11:507(2e10)] Shader 'layer_subtract_blend_shader' loaded.
[11:08:11:522(2e10)] Shader 'layer_add_blend_shader' loaded.
[11:08:11:522(2e10)] Shader 'standard_shader' loaded.
[11:08:11:522(2e10)] Shader 'standard_flat_shader' loaded.
[11:08:15:984(2e10)] --------------------------------------------------------------------------------
[11:08:15:984(2e10)] Main Exception Handler: System.AccessViolationException
[11:08:15:984(2e10)] Exception message: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
[11:08:16:0(2e10)] Exception stack: at OpenTK.Graphics.OpenGL.GL.DeleteFramebuffer(UInt32 framebuffers)
at YoYoStudio.Graphics.Texture.DestroyRenderTarget()
at YoYoStudio.Graphics.Texture.Destroy()
at YoYoStudio.Graphics.TextureManager.DestroyReleasedTextures()
at YoYoStudio.IDE.Run()
at YoYoStudio.IDE.Execute(String[] _args, Int32 _initialWidth, Int32 _initialHeight)
at YoYoStudio.Program.Main(String[] _main_args)
[11:08:16:0(2e10)] --------------------------------------------------------------------------------