Open Captions Display Bug
Randomly an import SRT, when being edited for style changes, will not display those changes. Saving, closing the project, and re-opening it immediately reflects those visual changes with the Open Captions. This is on a 2017 iMac (max specs), macOS 10.14.6 with Premiere 14.3.
Adobe Staff - Nate commented
Give our new Open Captions beta a spin, this has been fixed.