Empty window with Kaspersky Premium title for the last two days.

[cafyon]

MS Windows 10 x64 Pro

Kaspersky Premium

I hibernate and then resume OS, daily.

For the last two days upon resume and login to Windows...

an empty window titled Kaspersky Premium opens without any visible content. Though it seems there is content when I click&drag to select inside the window:

Window contents start.

We'd love your feedback!

How satisfied are you with Kaspersky Premium?

Not at all satified	Very satisfied
0   1   2   3   4   5   6   7   8   9   10

Window contents end.

Satisfaction grades are clickable, pointer changes to finger when hovering them.

Also there is one more clickable entity (possibly Send/OK/etc.) at the bottom right corner of the windows, still invisible, pointer turns to finger upon hover.

I can wait 15 minutes, but content doesn't become visible. So I close the window.

Why the content have the same color as window background? Or, why the content are invisible?