After last update the nether portal will no longer turn of with a water bucket. This happen in both the old world i was playing in and any new world generated. The water can be dispensed around the portal even submerge it but it won't turn off. Also it won't allow me to dispense the water inside the portal frame. By hand. With a dispense it works sometime.  And turns off once the obsidian block in the frame is broken. Did not have any issues with the previous version of the game.