My Passport for Mac is hung up on "Preparing Backup" - Please help!

Good morning. I’ve been trying to do my regular backup, but it won’t move past “Preparing Backup”. I am able to enter Time Machine. I upgraded to macOS Mojave (10.14.2) fairly recently and I’m not sure if I’ve had a successful backup since then or not. I’d be grateful for some troubleshooting ideas. Thanks!

You can perform First Aid Test which resolves the partition related issues in My Passport, then use for Time Machine Backup. If issue still persists, need to contact Apple Support as issue may be with the Time Machine.

Thanks for your help. I’ll try that.