Jabba Ultimate Journey bug

I finally got around to trying to finish Jabba’s ultimate and discovered an old bug, according to Reddit from 3 years ago. My journey says complete and will not give any additional ultimate tokens, but says I still need four more ultimate tokens (12 total) for jabba’s ultimate. I attempted to do an extra instance of the 6th tier, but it gave no rewards. Is there a fix for this? Currently it appears there is no way for me to unlock Jabba’s ultimate as all of tiers show complete and give no further rewards.