Hey there C_Dolan,
Thanks for reaching out to the Apple Support Communities.
To get started, you've gone through some great steps that can help with troubleshooting this issue. To help with isolating the issue further, check out the additional steps from the resources below:
If still running into issues after going through the steps above, we'd also recommend testing the issue in a new admin user account. This can help to determine if the issue is isolated to your account, or if the issue is system-wide.
For help with creating a new user account for testing purposes, check out this next link here: Add a user or group on Mac - Apple Support
Add a user
1. On your Mac, choose Apple menu 
> System Settings, then click Users & Groups 
in the sidebar. (You may need to scroll down.)
2. Click the Add Account button below the list of users on the right (you may be asked to enter your password.)
3. Click the New Account pop-up menu, then choose a type of user.
- Administrator: An administrator can add and manage other users, install apps, and change settings. The new user you create when you first set up your Mac is an administrator. Your Mac can have multiple administrators. You can create new ones, and convert standard users to administrators. Don’t set up automatic login for an administrator. If you do, someone could simply restart your Mac and gain access with administrator privileges. To keep your Mac secure, don’t share administrator names and passwords.
For more information about the options for each type of user, click the Help button in the lower-left corner of the dialog.
4. Enter a full name for the new user. An account name is generated automatically. To use a different account name, enter it now—you can’t change it later.
5. Enter a password for the user, then enter it again to verify. Enter a password hint to help the user remember their password.
6. Click Create User.
7. Depending on the type of user you create, you can also do any of the following:
- For an administrator, select “Allow user to administer this computer.”
Keep us updated on the results.
Take care!
