If you delete just the Schedule K-1, it will regenerate if associated worksheets are still in the return. You must also delete all the worksheets too. I would recommend that you go thru the steps below again and "re-delete" your K-1 and the all the worksheets associated with the K-1.
Next, delete your state return and then start a new state return by transferring the new federal information (without the K-1/worksheets) to create the new state return.
*Important: If the form you want to delete has a worksheet then you must also delete the worksheet first and then you delete the form.
The proper way to delete an unwanted K-1 is from the K-1 Summary screen, which also removes the associated worksheets.
To delete the worksheets follow these instructions:
Here's the general procedure for deleting unwanted forms, schedules, and worksheets in TurboTax Online:
How to delete a state return
I have this same problem. went to delete the state return, but it says I can't per this link!
What should I do now?
More information may help resolve your issue. For example, what version of TurboTax are you using, what error message did you receive from TurboTax, and exactly are you trying to do with a K-1 and/or deleting your state return?