Have someone had such problems as missing quest items? (Divinity: Original Sin 2)

Have someone had such problems as missing quest items? A job where you have to bring two parts of the Redeemer to the succubus, the first found Belolikova, the second at the Academy, noting the job that you can bear to give, but it turned out that the first part was missing( I never sold and didn't give it away part) In the total task 4 act there, and to perform in any way.
And the second point in the same 4 act like to choose from the ship Revenge, which is in the afterlife? Icon quick move on the map(near where the succubus with a friend standing), and nothing.
p,s a lot of bugs in quests, enough to greatly spoil the impression of it. Even in the 1st act, where long was early access and a lot of bugs. A lot of jobs not completed.