Frustrating crashes by doing basic game functions.

The game crashes when I do just basic actions in the game, I literally dig a block and it crashed, I swim in the water and it crashed and I just slept in a bed and when my character woke up, it crashes. I understand that beta builds are unstable but really? There has been one beta when the game is COMPLETELY UNPLAYABLE, and guess what? The funny thing is that it's not the new features that has problems, the existing functions have issues. I'm sorry if I may be rude but can you guys make the game more playable in beta builds, if the new features glitches than it's fine but not the pre-existing ones. Also I've re-written this as the previous one you guys claimed invalid because I spoke about 2 bugs in a single report. So here is the separate version