wine app in linux, cursor disappear and window is on top

[hulking.ye]

Hi,
I encountered a problem when using wine to run a app MiLiao (Chinese IM app like QQ). The app window displays normal but the mouse cursor disappears when moving onto the window. And I also found that the app window is always on the top. And seems there's no corresponding indicator on the taskbar.
I'm using Ubuntu 16.04 and the version of wine is wine-1.9.20.
And I already created a bug in bugzilla but get no response at all:
https://bugs.winehq.org/show_bug.cgi?id=40552


Anyone knows how to resolve it? Or what's the problem?
Thanks in advance!

[hulking.ye]

Here to correct/complete the description of the problem(sorry the previous description is not accurate):

The following 2 sentences should be IGNORED:
*TO IGNORE* {
And I also found that the app window is always on the top.
And seems there's no corresponding indicator on the taskbar.
} *TO IGNORE*

The app window is not always on top and there is indicator on the task bar when I check again.

The info about the app:
To download the installer: http://mi1.cc/down302?c=100_1_PC
The official site: http://www.miliao.com/

And the command line to run the installer:
LANG=zh_CN.utf8 wine ./miliao-setup-3.0.0.2111.exe

You can see the problem by just running the installer. Mouse cursor disappears when moving onto the installer window.