Bug: NoData values are incorrect for 16-bit and 32-bit rasters stored in ArcSDE or FileGDB
Loading 16-bit and 32-bit data in a file geodatabase or ArcSDE is changing the NoData value from the current value assigned to the raster: 32767 for 16-bit data and 2147483647 for 32-bit data.
These values are valid pixel values for these bit depths, which causes valid pixels with these values to display as NoData instead of the correct pixel color.
This is a known issue.
There is currently no workaround for this issue.