I have the same problem. Consequence: A major error in my tax return!
I discussed this with TurboTax support yesterday (March 12, 2025). First time he saw this. The only solution at this time would be to change the trade dates to one day BEFORE June 24th. Not sure how Revenue Canada and Quebec would appreciate it.
According to the agent, there is a possibility of correcting the "computer bug" at the beginning of April.
To be continued.
PS: This problem Has also been reported in the French forum.