I'm using sitecore 9.1.1. I have a requirement to enable searching for a user with his name in the Experience Profile dashboard.
I followed this link in order to enable indexing PII data, then I followed the steps for rebuilding the xDB and it worked, I was able to search with a name in the Experience Profile and it returned the results.
But the thing is, when I did the last step in this link which is swapping back the xdb cores, the search went back to not working again.
So my question, is this the expected behavior, that swapping back will disable the search functionality again and I should just keep the cores swapped in order for the search to keep working? or this might be an issue? I can't see any relevant errors in the xConnect indexWorker logs.