I was using right-click on the page and then "add to speed dial"
060a839f-0b8b-4cf1-9032-7b1b35fe19d7-image.png
I have now tried with CTRL + D and by clicking the heart icon in the address bar but the result doesn't change
What's even more strange is that if I click on the 3 dots of the speed dial I see this or when I click on the heart icon, I see this thumbnail proposed by opera:
96351eb2-4e42-4373-a73b-92c26f1f4123-image.png
But after confirming I just get the icon