Reset tower and deleted precursor tablet in it

After opening the area with the anomalous boss near the tower, complited sun temple (activating the crystal on the completed map) reset the tower's progress and removed the precursors tablets in it. When hovering over uncompleted maps in affected region, it shows that the modifiers are still active, but when completing the map, they are missing. The tower itself began to be displayed as not completed now.

+1, same for me. The very first tower in fresh endgame happened to be sitting next to Manor of Fog (deadly boss map), that is inaccessible before I make some mechanics around the mentioned manor.

Completed precursor tower, put tablets, got quest reward for the first tower completion, got bonuses from tablets. Tower was green.

I moved one map further and tower turn blue and marked as "Map attempted" (i.e. attempted, but not completed) and it's now accessible again for enetering, no tablets shown inserted. I am afraid, second completion will reset all bonuses.

Same problem, finished the first tower, put three tablet.
Go to the nearby blue map to unlock the mansion in the mist.
Click on the stone at the end of the map.

The blue halo go to the tower, the tower is marked as atempted and the three tablets are gone.

+1. The Hedgestone was in the tower area, then I completed the next hedgestone, then the hedgestone was placed on the tower again. Good bye my only tablets :'(