Can't pick up water or milk or lava if on split touch controls with the cross in the middle

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
It would put the item in the bucket
What actually happened was...:
Describe what happened here
It didnt work
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...build a bucket
3. ...tap on water milk of lava and it won't pick up