Hi Travelers
After the DLC update, we found that many players reported saving issue, we're currently looking into it and if you have any clue please leave the comments below, it would be a big help for us to solve the issue.
For players who encounter similar problems can try to load the free DLC1 - Champion of Chaos, We've got some players' feedback that it can be temporarily resolved in this way.
Thank you all, once we the issue has been addressed, we'll push a fixed update as soon as possible