Blocks should break when i punch them.

What I expected to happen was...:
The block should break normally
What actually happened was...:
I stop punching the block and I automatically go into esc. My cursor then comes out of the pointer and I have to click to join them together

Steps to Reproduce:
im pretty sure no one else is having the same problems, but:

1. Start punching a block
2. It will stop you and will make you transition into esc. (press esc. It shows that)
3. The mouse will come out of your "pointer" and you will have to click for them to rejoin