Index Marker on Folder

I indexed a PDF into a folder in DTPO. The folder showed an index mark on the file and next to the folder name. I deleted the file from the folder but the index mark is still next to the folder name. Is there a way to remove it? I tried some of the tools like verify & repair and rebuild database but the index mark is still there.

My guess would be that you also indexed the folder itself. To remove the indexing mark, show the Info panel (Tools > Show Info) and clear the Path field.