For me, Opera sponsored suggestions always show first and always come back (I can remove them but they are back the next time I return to speed dial) which is why I just disabled suggestions completely. Not useful in its current form.
My god, it even comes back from the Trash 😕 You can temporarily "hide" it (1 hour? 2? 3? one app restart maybe?), but then it's recreated and slapped right back on the top of Suggestions. You can delete/hide the Opera suggestion - it won't return. But AliExpress? Stuck with it.
This was not a case in Opera until this new dev version I've installed of Opera 41, I was on the x64 Opera 40 dev before it and all was OK, you could delete all the default items in Speeddial etc. In the end I gave up and unticked Suggestions altogether.
I don't understand why they think this is OK to do. There is so much choice on the browser market, why would you risk alienating users?