i found some tool for Mac "Project repair" but no success there.
also when i manually delete those weird signs & errors from ppro project in notepad++ ,save to new name file and then try to import each sequence separately progress bar go up to 80% then stuck in place ,this is much more compare to original which go only 10% and stop.
This new clean file opened and checked in XML Wrench give me few errors like that
hope that make sense