Lava and water mechanics

Hello! I found that in bedrock beta, some of the lava chunks don’t completely flow down and will just float in the air in the caves, also I have come across a water pool with a lava pool at the very bottom, not obsidian, just lava, and breaking a block around a lava block will only change that one block into obsidian rather than the trickle effect that usually happens with pouring a bucket onto the lava.