I have upgraded to 2018.4 version form 2016.2 version recently.(Enterprise Edition)
During development like find collection of element children and click each child element,
We found that the single click activity with “SendWindowMessage” has subtle different between 2016.2 version and 2018.4 version.
I suspect click down activity is becomed more longer time and click up activity is becomed late in 2018.4 version, even can easily trigger drag and drop event, depending on where hover of cursor over on screen.
However, 2016.2 version is no problem.
Click activity is the most basic in robot process, and therefore the problem is hardly to detour.
I need some help, please tell me why happened and how to resolve.