Clicking on Button while page is still scrolling

While page is still loading and displaying objects, there will be a high chance of attempting to click on a moving target. 

The correct way to go about it, is to wait for the page to finish loading and than to wait for last object to be ready using its properties (exists enabled and visibleonscreen).
https://support.smartbear.com/testcomplete/docs/app-testing/web/common-tasks/waiting-for-pages.html 

Even-though your hover over work-around solves the issue, it does not guarantee it on each attempt. 

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