I've investigated the issue and it seems like your text has some additional characters for line separation, I've improved Asset Forge to ignore these characters (and any other line separation characters) so it's now able to read this file correctly. The fix will be in Asset Forge version 2.1.2, which will soon be released.
Thanks for reporting!
O, thank you, I guess I can fix the model now, just looking at it in any editor showing \r\n . Maybe this could change when file went through github, because at first it open ok on machine it was created, and on another after synchronizing I go that error the first time. Though still they could be opened on first machine. And eventually it could broke because going through when syncing back, and it stopped working on first machine, too.
Just tried changing line breaks to \n and restored my model! Thanks again!
