SImulator no longer able to load fit files

Hi,

Since the latest release of the new beta simulator (4.0.10-beta), it appears I cannot play fit files. The interface has changed, which seems to allow fast-forwarding through files. This would be a great improvement if it worked.

When I choose File in the top right and choose any recorded fit file it pauses momentarily and then shows the file name in the box at the top of the UI.  It doesn't show any time against the file at the bottom and when I click on the play button it does nothing.

I've reverted to 4.0.9 for now, but thought it was worth highlighting.  I can share an example fit file if you need it, but it seems to affect any fit file I export from Strava activities.