dSYMUploader has conflicting provisioning settings

Question

I'm having some trouble archiving and distributing my iOS app to the App Store from xcode 10.3.

Once I've archived my app, and I click 'Distribute App', shortly after I get:

dSYMUploader is automatically signed for distribution, but a conflicting code signing identity iPhone Distribution has been manually specified. Set the code signing identity value to "3rd Party Mac Developer Application" in the build settings editor, or switch to manual signing in the project editor.

I have been stuck with this for a few hours, but haven't had any luck following previous forums posts made with similar issues.

Regarding the message that's being prompted; '3rd Party Mac Developer Application' isn't an option on the signing dropdown, nor does it work if manually specified. Currently it's set to automatic.

Here are some potential solutions i've already tried, but haven't worked:

• https://forum.unity.com/threads/ios-build-failing-fccore-bundle-has-conflicting-provisioning-settings-xcode-9-2-automatic-signi.520730/

• https://answers.unity.com/questions/1507983/unity-iphone-has-conflicting-provisioning-settings.html

• https://stackoverflow.com/questions/40824727/i-get-conflicting-provisioning-settings-error-when-i-try-to-archive-to-submit-an

• https://stackoverflow.com/questions/50286643/xcode-complaining-about-conflicting-provisioning-settings

• https://stackoverflow.com/questions/52733108/how-do-i-resolve-the-error-app-has-conflicting-provisioning-settings-app-ha

• Manually setting the code signing to: "3rd Party Mac Developer Application"

• https://stackoverflow.com/questions/47281554/app-has-conflicting-provisioning-settings-in-build-settings

Any help would be greatly appreciated.