Adobe version 15.0.0.223, Opera version: 26.0.1656.24

Flash videos including live streams can't be interacted after changing tabs, live videos do have a strange effect causing glitched graphics to appear randomly after visiting other tabs.

Nvm, I uninstalled the packaged, went to another browser, couldn't deal with it, returned back to Opera and all the sudden the issue was solved. Might have been some bug that occurred after the update.

Ever since the last update 21.0.1432 hovering over links doesn't reveal the address anymore.