Premiere Pro 24.1 (but this issue has been occuring on several previous versions too)
macOS Ventura 13.6.3
If I create some text using the type tool, then select a portion of it, I can change the size or font or bold etc. of just that selected portion. Great! However, after doing this 2 or 3 times, Premiere Pro gets confused and will now change the size or font or bold etc. of the entire block of text instead of just the selected part.
At the moment, the only way to solve this is to quit Premiere Pro and open it again and then the text modifying will work correctly for a few times before I need to quit again and repeat.