Quest not resetting (STALKER: Shadow of Chernobyl)

Guys please help!
In general, the fact is that the quests are not updated. I came to Gray to find out about Mole, helped, found out, but the quest is not reset, and "Learn from Gray from Crote" hangs, went to Mole at the Agroprom Research Institute, helped fight off the soldiers, found out Strelka's cache, and the quest still hangs " Learn about Arrow's hiding places