First Update Notes on April 12th:
1. The click range of the dialog box has been expanded. Now, the entire dialog box can be clicked.
2. The feel of using items has been fixed. Clicking to use items has become easier and there is no more lag.
3. The bug that allowed the explosive item to be placed repeatedly when in use has been fixed.
April 12th Update Notes: Fixed dialog click range/enhanced item usage feel
Source: Steam Community (opens in a new tab)