@leocg It is Opera under Win11 on desktop, it says Opera Stable, have no other info about versions...

Hi all,
I´ve been using Opera with Whatsapp sidebar for 10 years and so far there was no problem using it. About one month ago the side bar with Whatsapp stopped unrolling to the left, so I can see only the preview of recent chats but not the message itself. Therefore I am not able to read nor write text of the messages. Could someone hekp me, please?