I spent some time digging into it and was not able to find any explanation or solution. The library used for rendering that text box is a beast and it's hard to tell what could be causing the issue. Seems to work on every other browser/os combination.
I try again every once in a while, hopefully someday we will find the issue.
07/30/2020, 3:53 PM
Maybe it’ll work in the next version of Safari, if it’s a browser bug.
07/30/2020, 3:54 PM
Is there a significant new release of Safari upcoming?