Pixel 2 XL - Screen goes black when making calls

Issue: 
Screen goes black once you press the dial button to make a call. You then have to lock and unlock the phone to be able to hang up.

Fix: 
Open Settings > Apps & Notifications > All Apps > Phone > Storage

Clear Cache
Clear Data

This fixed the issue for me (also big thanks to google support [shoutout to Paul.A])


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