I have the same issue. When will the activity worksheet be available so I can transmit my return 

I was able to efile my federal separate from my state, so I'm just waiting to be able to file my state.  Been waiting since 2/7/22. 

I went ahead and ate the electronic filing fee. This problem has been around for about a month, if you look thru the forum. I have no hope of it resolving itself.

So I printed the MD forms from inside TT, signed them, attached the proper 1099-R forms and will be mailing mine overnight priority tomorrow (2/22). If by chance the problem is resolved before I mail it, then I will file electronically. Supposedly it only takes 3 to 4 weeks for MD to issue the refund.

If you go into the Forms view and scroll down to MD, you will see the ! mark next to the problem issue form. That is all you need to do (look at the forms view) to decide if it will fail again. 

To clarify, Form 8582 is used to figure the amount of any passive activity loss and Schedule C if for sole proprietor businesses and contractors.

If this is in your Maryland tax return, our team is working to resolve an error message in some Maryland state returns that give an error message about Form 8582 and Schedule C needing an update, even if there are no passive losses to report.

If the federal forms are all finalized and the federal is ready to e-file, you can choose to file just the federal return at this time, then come back when your state forms are ready and e-file that return. The filing date for tax year 2021 Maryland state returns was extended to July 15th, 2022.

1. When you get to the Here are your filing options screen
2. Select Change next to your state return
3. On the Change filing method screen
4. Select I'm not ready to file
5. Click Save

Note, if you don't e-file them together, you do have to wait until the federal is accepted before you can e-file the state. Sometimes this takes a day or even two.

Here is a TurboTax Help article with directions for when you return to file your state return.

File State after the Federal is Filed

If this is not a Maryland state return error message, please let us know if it is in the federal return or a different state. This will help us investigate the message. If you do not have any passive activity, we would like to take a deeper look at this. It would help to have a diagnostic file, which is a sanitized copy of your tax return that has all of your personal information removed but has all of the forms and numbers entered. You can send one to us by following the directions below and posting the token number here so we can access the sanitized return.

 TurboTax Online:

1. Sign in to your online account.
2. Click on Tax Tools on the left tool bar
3. Select Tools
4. In the pop-up screen, click on “Share my file with agent”
5. Click OK on the message that a diagnostic file will be sanitized and transmitted to us.
6. Please provide the Token Number.

TurboTax Desktop/Download Versions:

1. Open your return.
2. Click the Online tab in top menu bar
3. Select “Send Tax File to Agent”
4. Click Send on the message and the tax file will be sanitized and transmitted to us.
5. Please provide the Token Number.

This is a known experience that has been escalated and is currently in review for a fix. We understand that this is frustrating and apologize for the inconvenience. We will advise once an update is made available. In the meantime, you may file your federal return first and then complete the state return later.