That animation is stored in a system resource, so you may have corruption. I would run the following.
- Open an elevated command prompt (click start, type cmd, right click on "Command Prompt" and select "Run As Administrator")
- Type sfc /scannow
- Run dism /Online /Cleanup-Image /RestoreHealth
- Also run chkdsk /r /f press y to accept running at next start up and reboot your computer (be prepared to wait a couple hours)