View port was black out

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

UI/Tools

Summary

Following image, view port was black out.
For reproduction this issue, I change the view port menu “perspective” to another views.
I don’t know how this problem happened.

Please let me know a solution.
Thanks.

Steps to Reproduce

  1. Click view port menu
  2. Change “perspective” to another view.

Expected Result

Nothing

Observed Result

Nothing

Platform(s)

PC, GTX3070Ti (Updated)