It depends. You can delete the 1099-MISC or Schedule E, then enter it again. Use the link below to delete the necessary form for your TurboTax version.
Before you add the income back:
If you are using TurboTax Online you can also clear any debris behind the scenes using the information below.
In this situation, first please try clearing the cookies and cache. It handles many issues that seem nonsensical on a regular basis with online activity.
Watch to be sure you are selecting 'all time' as example. Do not use selections like 'last hour' for those browsers that give you options.
Once this is complete open your return and try again.
If you are using TurboTax Desktop, save your return, then at the top select Online, then Check for updates.