When I launched the Files app just now, it sat there with an empty window, spinning apparently indefinitely. I closed it after a minute or two and launched it again, at which point it worked. Deadlock at startup?

I filed a feedback report while the app was stuck from derat@google.com.

Google Chrome	71.0.3578.127 (Official Build) (64-bit)
Revision	ab04191dbdc8146b84b76a6e91a762b88574eaa4-refs/branch-heads/3578@{#931}
Platform	11151.113.0 (Official Build) stable-channel cyan