Hello. I played TQ few days ago(Dec 29, in fact). Right now I see that most of quests disappeared from journal. I don't know what happened, but it seems to affect all 3 difficulties. Yes, normal and epic difficulties made my character to appear in Helos.

Someone know what is this? It was OK 2 days ago.

A Galaxy 2.0 or cloud saving issue I suspect. Nothing in the game would cause that. Are you using cloud saving or local saves?

Hello, I googled that and found out the cause. Power shut down corrupted save, so I had to use backup(saved in other dir).
So it's fine now. Just alway make backup saves MANUALLY(if you know about such problem).

Glad you found the problem and was able to fix it Uranist. And yes, back up saves regularly. It never hurts and could save you from losing characters like this.