Healing brush freezes
The healing brush sometimes freezes when I use it. Suddenly, there's a ring on the screen where I last used the healing tool and I can't use the tool anymore. I can still do other adjustments, but to use the healing tool, I have to restart my Lightroom. This is a screenshot of how it looks when it freezes:

Steps to reproduce the problem (not always):
1. Use the healing tool.
2. Drag the tool over the spot/blemish I want to remove.
Expected result: Lightroom searches for an area to copy and heals the selected area.
Actual result: the healing tool freezes and the blemish isn't removed. I have to restart Lightroom to retry.
These are the details of (cloud-based) Lightroom and my MacBook:


