Orders loading, not executing, not possible to change/cancel; Updated: Limit Sell Executed

Hi @Team212 ,
There seems to be a problem executing orders.
I have placed one buy order of QS and a sell order of API, both limit, and I can not cancel or change them. API has reached the limit price, but the order did not execute.
Can anyone help please?
Thank you.

Update:
Limit Sell API @$46.30 executed above placed limit of $45.95.
Thank you @Team212.