When trying to break the blocks in creative or even in survival, they don't break, they keep disappearing and reappearing in the same place, by touch they don't break, but if I keep pressing on them they break, but as my intention is to build it becomes unfeasible, I will waste a lot of time. And even in construction there is this delay if I don't press even the slightest. I'm using the beta version, I changed after these problems appeared in the normal version after an update.