Can't post comment on Instant poll in F1 neither reply

Hello team, I can not reply to any commnent in F1 instant poll only, if I check F2 or F3, there is no issue and the field for the reply appears. However in F1 I can see only the message saying that I need to log in – but I am logged in my account. Also I have been able to tick the option that I have passed the exam, but I cannot comment on my percentage achieved. Could you please help?