I am using EPiserver 10 hosted in Azure cloud. I am using EPi find 12.5.0. I have three sites sharing same code base and different databases. Each site have Dev, Test, ACC and Prod. Interestingly, Two of the sites in all environments shows pdf indexing. One site shows pdfs in Prod environment, but shows "localhost" in links. Same sites ACC and Test environments does not shows pdfs.
Thanks & Regards,
Check that you aren't connected to the same Find index from different Epi databases.
Check that you have room in your index and run the Find indexing scheduled job from the correct environment.