can not control click to place items in mac

Put the summary of the bug you're having here

*What I expected to happen was...:*to place an item
Describe what you thought should happen here

*What actually happened was...:*was i broke a block
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...all you do is control click
3. ...and it does not work it breaks