Dryad 1% hallow issue

[mickyy]

Hello, I don't know if this is a bug or what but I've spent hours trying to complete the "and good riddance" achievement but I can't find the last bit of the hallow biome and the dryad says that there is a 1% of hallow somewhere. I tried using terramap but it didn't highlighted any hallow whatsoever. I also tried with TEdit but no, i wasn't able to find anything that migh be affecting the achievement progress.
I'd love if someone knows what the issue might be here. Thanks

 

[Russ Guss Doodles]

Have you tried exiting and reentering the world? Sometimes the status won’t update until you do that.

 

[mickyy]

Have you tried exiting and reentering the world? Sometimes the status won’t update until you do that.

I tried multiple times but there is no change at all

 

[vessal]

I tried multiple times but there is no change at all

do you have tedit you could find the hollow and remove it there since your on pc alternatively you could use biome sense pot on the x where the hollow appeared and then use a clentaminator/terraformer