At first I thought you meant that you could not see the captions in the Program Monitor. But I see that your caption track is not showing the full captions in the segments. I think you have increased the height of the track, but it is not displaying. Click on the CC in the track header area. Pick "Show active track only."
See this post, where I describe assigning a keyboard shortcut for this purpose:
I just tested in 23.5.0, and it is working. Then it was not working and then working again. If it is not working, try using the Shft+scroll to change all tracks, then repeat the "active track only" setting. And then reset workspace perhaps.
In that thread, I also have a long post on caption track height for one or more caption tracks.
@Kartika Rawat, does that information still look accurate? It is one of the areas where there is not enough info in the documentation.