Let's perform some steps to let your employees show in your QuickBooks Online for Mac, killarneyscochra.
You clear the cache of your QuickBooks app to refresh your account and start a clean slate. To do this, just click Help and choose Reset App Data.
If the same thing happens, you can uninstall and re-install your QuickBooks App for Mac. Kindly see this article for more details: QuickBooks App for Windows and Mac: General Support.
Please keep me updated if the steps work well for you. Just leave a reply below.