When using large ERDAS IMAGINE data, the image may disappear when zoomed in to full raster resolution. However the image is visible when zoomed out. The Identify tool returns NoData at all scale levels.
When renaming ERDAS IMAGINE files larger than 2 GB (with .ige), all the associated file names are updated. However, a pointer within the .img file pointing to the .ige file is not updated. As a consequence, when the software looks for the .ige file it looks for the old name which no longer exists, and the data is no longer displayed. The pyramid files continue to be displayed, which is why the image is visible when zoomed out.
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