Global Mapper v25.0

Wrong elevation values when exporting tiles

Hi, I'm trying to export RAW elevation data using tiles and getting strange values. Please check the last attached image (3x3 tile output result). Looks like the exporter fills data that outside of selected area with 16-bit max values (should be zeroes). Is there any solution for that? There are "Crop right and bottom cells" option but I need square tiles, not cropped. Thanks.