Hi! Let's recover some coins, I'm always up for a challenge.
Can you let me know which version of electrum-ltc you're currently running? My first thought is that maybe the seed was generated by a previous version, and you know how the seed "should be" forward-compatible but in reality you know how that goes right. I see several items in the release notes that make me question forward-compatibility:
So what I'm thinking to try is to start stepping backwards 1 version at a time, trying the seed, until it works. You've got a pic of the password/seed so there is no question that what you have is right, we should be good there.