[Qgis-user] about the raster calculator

[a21n179b -]

I have a question about the raster calculator.

The version of QGIS is 3.38.0.
and,Windows 11 Pro

I am trying to determine NDVI using orthophoto.
The orthophoto contains 5 bands. (R,G,B,NIR,REDEdge)

However, when I calculate the formula to find the NDVI, it shows two
rasters, as shown in the attached screenshot, and does not give the correct
result.

When I performed the same operation on another PC (version 3.36) using the
same orthophoto, it worked fine.

I would like to know what the problem is that two rasters are displayed.

Thank you in advance.
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