Bug in search of Files iOS app

After updating my iPhone to iOS 18, I've been facing a very annoying bug. In Apple's own Files application, I no longer have access to recently opened files and I can't search for any files. I thought that with the release of ios 18.1, it could be solved, but it wasn't. I already deleted the app and downloaded it again, without success. Someone with a similar problem or who knows any solution? Which file manager do you use? It was simple but I liked the Files app, but without the search option, it's impossible to use.