Error with SDLToolKit

The SDLToolKit just gave me an error during a regex search and replace action for both source and target segments.

I could still perform the operation, only the preview seems affected by this:

sdlerror-2020214-9h31m53s.sdlerror.xml
<SDLErrorDetails time="14-Feb-20 09:31:59">
  <ErrorMessage>Index was outside the bounds of the array.</ErrorMessage>
  <Exception>
    <Type>System.IndexOutOfRangeException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <HelpLink />
    <Source>mscorlib</Source>
    <HResult>-2146233080</HResult>
    <StackTrace><![CDATA[   at System.String.get_Chars(Int32 index)
   at SdlXliff.Toolkit.Integration.Controls.RTBManager.SelectRTBSegmentText(RichTextBox ctl, List`1 dataMatches, Boolean isSelected)
   at SdlXliff.Toolkit.Integration.Controls.ControlCell.SetRichTextBoxText(RichTextBox ctl, SegmentCellData sData, Boolean isSelected, Int32 imgWidth, Int32 imgHeight)
   at SdlXliff.Toolkit.Integration.Controls.ControlCell.PrintCellText(RichTextBox& richTB, Size imgSize, DataGridViewCellStyle cellStyle, SegmentCellData segData, Boolean isSelected)
   at SdlXliff.Toolkit.Integration.Controls.ControlCell.Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, Int32 rowIndex, DataGridViewElementStates cellState, Object value, Object formattedValue, String errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
   at System.Windows.Forms.DataGridViewCell.PaintWork(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, Int32 rowIndex, DataGridViewElementStates cellState, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
   at System.Windows.Forms.DataGridViewRow.PaintCells(Graphics graphics, Rectangle clipBounds, Rectangle rowBounds, Int32 rowIndex, DataGridViewElementStates rowState, Boolean isFirstDisplayedRow, Boolean isLastVisibleRow, DataGridViewPaintParts paintParts)
   at System.Windows.Forms.DataGridViewRow.Paint(Graphics graphics, Rectangle clipBounds, Rectangle rowBounds, Int32 rowIndex, DataGridViewElementStates rowState, Boolean isFirstDisplayedRow, Boolean isLastVisibleRow)
   at System.Windows.Forms.DataGridView.PaintRows(Graphics g, Rectangle boundingRect, Rectangle clipRect, Boolean singleHorizontalBorderAdded)
   at System.Windows.Forms.DataGridView.PaintGrid(Graphics g, Rectangle gridBounds, Rectangle clipRect, Boolean singleVerticalBorderAdded, Boolean singleHorizontalBorderAdded)
   at System.Windows.Forms.DataGridView.OnPaint(PaintEventArgs e)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.DataGridView.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>SDL Trados Studio</ProductName>
    <ProductVersion>15.0.0.0</ProductVersion>
    <EntryAssemblyFileVersion>15.2.5.2145</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 10 Enterprise</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1033</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
    <LoggedOnUser>danielhug</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>ABCD</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>16776172 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>

Daniel