https://bugs.winehq.org/show_bug.cgi?id=40102
--- Comment #2 from Mikhail mikhail.v.gavrilov@gmail.com ---
any test application which is publicly available for download
I thought that it applicable to any frozen applications. But I was wrong, sorry. Today, using Visual Studio I made the application which run Sleep (1000 * 60) after pressing button, and the effect of the disappearance of the mouse pointer was not able to achieve. With regards to the above demonstration, then it showed the trial version of SQLyog 12.1.8, which can always be downloaded from here https://www.webyog.com/product/sqlyog simply enter Email. I'm not sure that you will be able produce same load as I am. Therefore, I am showing another demonstration. Just open the Schema Designer and try to connect two tables. And it will be the disappearance of the mouse cursor.
New demo: https://youtu.be/nBlm9n4XCec
May be problem above have same symptom.