I won't touch Chrome, but I searched for your question on this website and found a thread where people had similar problems and found workarounds. You might want to read this page:
Since I don't know what method you are using for capturing images on your desktop or in Chrome, I can't really tell if the problem is with Chrome or not. You may want to tell us precisely how you are capturing your images and placing them into the KM action. You may also need to tell us whether you are using the "default" screen resolution as shown in the following image. You may also need to tell us which version of macOS and which version of Chrome you are using.
