I also had the issue with not being able to load subscribed instances. I think someone said it was tied to a forced logout of some sort that happened. I resolved it by removing the accounts from Liftoff, then re-adding them. Afterwards, it worked fine.
Theres a good chance that the tag was supposed to be replaced when the price went up, and then this “sale” started sometime after, dropping it to the old price point. I would see it most often in the health and beauty sections of my old store, because they have so many small tags, sometimes the employee whos changing the tag cant find a specific one that needs changing and just tosses the new tag instead of working to find it.
I think the newer Star Wars Battlefront games did that.