I would try Dolphin HD for now, until Opera fixes the bug.
From now on use App Tyrant. When first opened up it will save all app's in there apk form to the sd card. After, any app that is installed will be auto saved to the sd card in the apk form.
The only way an apk can be deleted is by you. This means if you get a borked update, all you have to do is restore the apk that worked, from the ones App Tyrant saved to the sd card.
This also means you need to go in and delete the old apk's of the new app's that are working properly. They can add up and take up space on the sd card.