Why are labels not showing correct value

[JamesHarrington]

Hello -

I have a line feature class with labels from a numeric field in the class. when I pan the view in layout view, the label on one of the lines changes value. Why is this happening? Very frustrating.

[DanPatterson_Retired]

I would only be worried if it changed in data view.  Does it affect printed output? That is when I would worry, since layout view is for printing and probably less suited for viewing.

[XanderBakker]

That is interesting, took me a moment to understand the screenshots, but I see what you mean. This label is based on what kind of field?

What version of ArcGIS are you using. Where is the data residing (local file, personal/file geodatabase, enterprise GDB)?