Thank you for providing this information however I did my own research beforehand and already read about that. The form I needed has nothing to do with capital gains. It is a request to carry back a loss from this year to a previous tax year. Nothing about that rule or form has changed with CRA.
As an experiment on my end, I logged back into my TurboTax and removed all information and unchecked all boxes that pertained to that "request for loss carryback" T1A form. I have the option to carry it forward to future years so I will, if it means I can file my taxes. Removing all of that info, made my taxes as basic and simple as can be. It meant I no longer needed ANY of the unavailable locked forms. I then clicked on the FILE button again and still got the same message about not being able to proceed because forms are unavailable.
Additionally, there were two other users who commented here that their returns were also simple and didn't require any of the listed federal forms that you're saying the CRA hasn't finalized and those users also got the same "you cannot proceed" message.
So it would seem that this is a glitch. A software issue. Or a manpower labour issue with backend engineers not being able to add the forms on time after the UI software update which your help desk team member told me on the phone herself. Which there is a recording of.
TurboTax is losing the trust and goodwill it has spent decades building with its user base. Please correct this asap.
If I am not able to file by Friday, a refund will be respectfully requested for the service not rendered. You cannot take people's money and then tell them to file at some undisclosed "later date."
