Tower was reset, marked "attempted" and tablets are gone [Bug ID: #1406996579]

- Completed a Mesa Tower with T15 6 mod waystone.
- Inserted 3 precusor tablets.
- Completed an adjacent map.
- The Mesa Tower was reset, the tables are gone and it's now marked "map attempted"

As can be seen in the image, there's no other path to the finished map except via the tower.