Edition Windows 11 Pro Version 22H2 OS build 22621.1413 Experience Windows Feature Experience Pack 1000.22639.1000.0
Steps to reproduce:
1) Open notepad, enter a text with a linebreak, copy & paste into the keywords field. This creates a keyword with a linebreak. Practical usage case: I am copy-pasting animal species names from nature kindle books to the respective animal pictures. Since the line breaks don't show as a special carachter, they are not obvious in case the copied line break matches the display linebreak in the keywords field
2) Export the keywords (CSV method)
3) Try to import the keywords into lightroom. This returns an error about invalid data.
a) Either lightroom should filter special characters or
b) properly use quotes in CSV export and respect them on import