Arma 3 Launcher has encountered an unexpected error described below.
Sorry for the inconvenience.
Please report this on Arma 3 Feedback Tracker (http://feedback.arma3.com). Thanks to you we may fix the issue faster!

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System information
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Date:                2559-08-26 16:42:23 / 2559-08-26 23:42:23 +07
Current dir:         D:\Steam\steamapps\common\Arma 3
AppData dir:         C:\Users\keng\AppData\Local
Command line:        "D:\Steam\steamapps\common\Arma 3\arma3launcher.exe"
Version:             1.5.137.506
CLR version:         4.0.30319.42000
OS Version:          6.1.7601.65536 (Microsoft Windows NT 6.1.7601 Service Pack 1)
OS 64 bit:           True
Process 64 bit:      False
Personal dir:        D:\Documents
Culture:             th-TH
UI Culture:          en-US
Point of log:        Unhandled Exception

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Exception
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System.IO.FileFormatException: Input file or data stream does not conform to the expected file format specification.
   at MS.Internal.Text.TextInterface.Native.Util.ConvertHresultToException(Int32 hr)
   at MS.Internal.Text.TextInterface.FontFace.GetDesignGlyphMetrics(UInt16* pGlyphIndices, UInt32 glyphCount, GlyphMetrics* pGlyphMetrics)
   at System.Windows.Media.GlyphTypeface.GlyphMetrics(UInt16* pGlyphIndices, Int32 characterCount, GlyphMetrics* pGlyphMetrics, Double emSize, TextFormattingMode textFormattingMode, Boolean isSideways)
   at System.Windows.Media.GlyphTypeface.GetGlyphMetricsAndIndicesOptimized(UInt32* pCodepoints, Int32 characterCount, Double emSize, UInt16[] glyphIndices, GlyphMetrics[] glyphMetrics, TextFormattingMode textFormattingMode, Boolean isSideways)
   at System.Windows.Media.GlyphTypeface.GetGlyphMetricsOptimized(CharacterBufferRange characters, Double emSize, UInt16[] glyphIndices, GlyphMetrics[] glyphMetrics, TextFormattingMode textFormattingMode, Boolean isSideways)
   at System.Windows.Media.Typeface.CheckFastPathNominalGlyphs(CharacterBufferRange charBufferRange, Double emSize, Double scalingFactor, Double widthMax, Boolean keepAWord, Boolean numberSubstitution, CultureInfo cultureInfo, TextFormattingMode textFormattingMode, Boolean isSideways, Boolean breakOnTabs, Int32& stringLengthFit)
   at MS.Internal.TextFormatting.SimpleRun.CreateSimpleTextRun(CharacterBufferRange charBufferRange, TextRun textRun, TextFormatterImp formatter, Int32 widthLeft, Boolean emergencyWrap, Boolean breakOnTabs)
   at MS.Internal.TextFormatting.SimpleRun.Create(FormatSettings settings, CharacterBufferRange charString, TextRun textRun, Int32 cp, Int32 cpFirst, Int32 runLength, Int32 widthLeft, Int32 idealRunOffsetUnRounded)
 ... shortened ...