AnimMontage. Broken animation segment preview

In anim montage editor, preview for animation segment in details panel doesn’t work. Vieport is black, no tmeline.
Screenshot: https://goo.gl/ojUwdx (right panel).
Same case for any animation in any UE project.
It works fine in UE 4.17
Doesn’t work in 4.18.0 and 4.18.1

Hi,

Would it be possible to get the steps you are taking to reproduce this, or a repro project? I can then take a better look at the issue.

-Thank you

Hi,

Due to how long this thread has remained inactive, I will be closing it out. If you have any other questions regarding the issue above, feel free to reopen it.

-Thank you