Scale index (NNN) is not valid. Do you want use the current layout scale (SCALE)? Or create an "Unknown" scale? See 'Help|Recent Messages' for details.

Internal error: an invalid scale index has been generated. You can substitute the layout's current scale (recommended).

If you do not want to use the current scale:

• Choose "Unknown".
• Save your file
• Choose the correct scale from 'Options|Layout'
• Reload your file
• You will see a notice that "Scale Unknown is invalid"
• Choose the layout scale

You can also correct this by selecting the affected tracks, and using the 'Change|Change Scale' Change Scale command.

Please report this error to the XTrackCAD project development team at SourceForge. The process for reporting errors is outlined in Reporting Bugs.