By using digits in file name like 1.0.0.1, the file name will be truncated and displays like this 1.0
Command-I will bring up the Info panel; can you see the entire name there? If not, then edit to see I'd you can change it. 
I'm having an issue where a .app file with a 2 decimal number starts showing the extension (so instead of iMovie 2.1.3, it shows iMovie 2.1.3.app). So it's possible OS X just doesn't like the decimals