I had the same error. No matter who is calling it says it's my husband's cell phone calling. I tried a factory reset last night and it did not resolve it. I just now removed the app, restarted my phone, reinstalled the app and marked the box for notifications in the app. I just did a test call and it seems to be working now.
Update: this DID NOT solve my issue. Now instead, my work phone number always shows up no matter who calls.
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