The most likely cause for an FLT or BIL file not converting is forgetting to upload the required supporting HDR file, or uploading it as a separate file rather than in the Import Options dialog as a supporting file for the FLT. To upload the HDR file properly:
- Click the Import Options button () in the Options column for your uploaded file.
- Click and drag your HDR file into the External Files box or else click the Browse button, navigate to the file and select it.
- Click OK to exit the Import Options dialog.
Now you should be able to finish the conversion.
Updated March 3, 2017