I recently restarted the work on my US Army NTC from scratch. A few days ago I dumped my mask_lco.png and redid this one as well. Now I'm stuck with an error message when I try to choose inside V3 "Tools | Import Satellite and Mask".
After a few minutes V3 tells me by a messagebox "Error loading P:\j198\j198_ntc_2012\source\mask_lco.png".
The "mask_lco.png" is a 12800 x 12800 PNG file, which originates from the "sat_lco.png". I opend that one in Paint Shop Pro X4. Reduded the number of colors to 4. Then I save the file as mask_lco.png. When I look at the file in the explorer it says that this file has a bit depth of 4. When I try to import this file V3 crashes. That's ok with me, because I know V3 wants the file with a bit depth of 24. So I reopen the file in PSP and increase the number of colors to 16bits/channel. Recheck the total count on colors. Still "4". Everything looks good. Save the file, checking the advanced save options (Interlaced/Optimized palette) and the file has a bit depth of 24. When I know try to import the mask_lco.png I get the above error message.
What is wrong here????