Can no longer add Dip To Black at the end of the video project

I usually keyframe the opacity of a black video clip on the top track.

I had a same issue. Ending with Dip to black suddenly did not work. What you need to do is to change the End of transition on 50 (not 100). Hope it helps. 

I have changed the default transition on the beginning and end of a clip to Film Dissolve, which can be applied via CTRL/CMD+D. If the previous clip is attached to the last clip (no gaps), the transition will only be applied to the end.

In order to change Film Dissolve (which will act as a fade to black at the end if there are no underlying clips beneath) can be changed by searching the effect in the effects panel, right click and choose set as default transition.

Hope this helps.

Is there an easier way to add a fade to a black screen to end the video?

By @Ryan2899506430hy

Dip To Black is intended to being use between two clips but should be able to use at the end as well. Try to use the Cross Dissolve instead.

Still having issues? Launch Premiere Pro while holding down the Shift key and check Reset app preferences. This is often the key to solve odd issues.