"Add new captions segment" in Text Panel 3 dots Dropdown Does Not Work

Problem was demonstrated in 15.4.1 and Beta 22 Build 63. See forum post:

 https://community.adobe.com/t5/premiere-pro/no-to-add-captions-in-premiere-pro/m-p/12349974#M365071

Steps to reproduce:

    1. Narrow Text Panel so the Plus symbol does not show.

    2. "Add new captions segment" is available in the 3 dots dropdown

    3. Click on that option.

Result: Caption segment is not added.
Expected: Caption segment is added.

Workarounds: Expand Text Panel to use plus symbol. Use Ctrl-Alt-C.

 
System info
    Application: Premiere Pro (Beta) v22.0.0.63
    OS: Windows v10.0.19043, RAM: 23.99 GB GB, CPUs (logical): 8