Answers containing hyphen or parentheses not accepted

Hello,

In the new beta version of Classic Review, when I type the correct answer to a question whose answer contains a hyphen or parentheses, it automatically ends the question, as if it recognizes the answer as correct, but the entry box turns yellow and the progress bar decreases, and then it shows me the correct answer to the question, as if I had answered incorrectly. This only occurs with typing questions, not with multiple choice questions.

Edit: This also happens when the answer contains a period.