I've a project that uses Swift 4.1, Cocoapods and has some unit tests. These tests were visible on Xcode 9.3, after I updated it to Xcode 9.4 the test navigator gets stuck and even deleting the derived folder, cleaning the project, reinstalling the software and restarting the Mac **does not** solve this issue. Must be a misconfiguration on the project (but I didn't change anything).
Any idea what I can do?

[![Xcode stuck](https://i.stack.imgur.com/hDpxL.png)](https://i.stack.imgur.com/hDpxL.png)

(Image has been resized)