Doom Eternal suddenly not licensed anymore (was fine before), can't play?

[nutflicker]

I purchased Doom Eternal last month, redeemed the code in Steam, and it worked just fine. Have been happily playing it since, up until yesterday. Today I start the game and suddenly it's not licensed. That is, I can start the game but "campaign" is locked and I have to purchase it to play.

When I look in Steam, game is not in my library. When I try to redeem it again, it says invalid product code.

I didn't change anything to the game or to Steam or to my PC.

How do I get my Doom Eternal activated again?

[Chompman]

Try here:

https://steamcommunity.com/app/782330/discussions/

[ReBoot]

Where did you get the code? From some shady reseller, I presume?

[nutflicker]

Thanks and here's a very late reply, still posting this in case anyone else runs into this same problem.
I got a response from the reseller (which was not some shady pirate, FYI😄) later that day. Apparently there was some issue with Bethesda's update server, more people were experiencing the same problem.
The problem disappeared automatically after a few hours.