On NMEA playback, fix the can't go backward in time bug.
How to is actually simple. When GPSGate runs into a set of lines such as:
It will give the Can't read files which go backward in time error when it reaches the third line above. The file does not go backward in time, but GPSGate has run into a line it doesn't know what to do with. If the third line above is removed from the file, GPSGate will happily read the file. When that happens, just have GPSGate ignore the line and go to the next one until it finds a line that which can be acted on.
If you need a test file please let me know. I have several of them, just let me know how long you want the file.