I was rendering out a alpha map with 7 textures (we have support for 8 now in our build of TGEA) but ran across this little problem. Whenever I export the alpha maps as png tiles (512x512) the exporter will not export all the tiles on the second alpha map. It seems to skip over exporting tiles that don't have any coverage on them. This becomes a problem when we try to bring them into TGEA as TGEA wont compile an opacity map if a tile is missing. This almost seems like a feature gone wrong. Like maybe L3dt was trying to keep tile file size down by not exporting blank tiles.
Any help on fixing this would be appreciated.