Hello yulaw2k,
I was unable to reproduce this issue on our end. I have a few questions that will help narrow down what issue it is that you are experiencing.
Quick questions:
- Does this happen every time that you try and open 4.8?
- Does restarting your computer have any effect of the problem?
- Could you provide a detail list of steps to reproduce this issue on our end (in case I missed any small steps that you may have taken)?