Testing version: Version 2.0.15 (12062)
What were you doing: Copy text from table cell; copy text containing square brackets in macOS, then paste in iOS.
What feature did you use: Universal clipboard copy/paste
What happened: Text in table cell does not copy/paste from macOS to iOS (it works in reverse); only text outside square brackets will copy from macOS and paste in iOS (also does not work in reverse).
What did you expect to happen: All text copied from macOS will paste in iOS and vice versa.