CrossWork hangs when clicking project properties

My CrossStudio for ARM 4.3.2.2018112300.3784 suddenly has got the following issue:

When I click the Project->Properties or right click Project name then select Edit Properties, no windows pop up as normal, and the whole CrossStudio has no response to mouse click even not able to close. But Windows Task Manager indicates that CrossStudio is still working.

I uninstall/reinstall CrossStudio on my PC, but it doesn't help.

Anyone encountered the similar problem before?