When I tried to import a PDF file (an Apple programming doc) in Mac Desktop with the latest beta, all I get is garbage like this for the entire content with occasionally readable text:

?#?P?K?O?C?V?K?Q?P ?C?P?F ?6?K?O?K?P?I ?%?N?C?U?U?G?U ????
?.?C?[?Q?W?V ?/?C?P?C?I?G?T ?%?N?C?U?U?G?U ????
?6?T?C?P?U?C?E?V?K?Q?P ?/?C?P?C?I?G?O?G?P?V ?%?N?C?U?U?G?U ????
?%?Q?T?G ?#?P?K?O?C?V?K?Q?P ?4?G?P?F?G?T?K?P?I ?#?T?E?J?K?V?G?E?V?W?T?G ????

When I cut and paste from Apple Preview, it's normal text, but line breaks are missing.

Are there any settings I am missing to import PDFs? Thanks.