File Search in Responses API Broken?

Life was wonderful…until this week. Intermittently, meaning sometimes it works, sometimes it doesn’t–we’ll add a file to a vectorstore, get that all setup for internal tool calls to file_search and then sometimes the user gets a message like:

the file-search/indexing tool is returning zero matches even for obvious strings

Which is silly because, i’ll start a new converation in our app, attach the same exact file to a different vectorstore, run the same request and now it works.

Super annoying and I wonder if anyone else has started to see this creep up this week (things always break before they upgrade/release something new…)