I've saved an MSP file as XML for importing to P6, but after Import many of the activity durations and dates have changed. Some increasing by over 60 days. However I also can't seem to change any of the durations, I was hoping I could manually run through and change the durations, but I either get 'Planned Finish Date cannot be earlier than Planned Start Date' or 'Remain Finish Date cannot be earlier than Remain Start Date' error message. I've also tried changing the 'Link Budget and At completion for Not started activities' option.
What am I doing wrong?
This is a suppliers schedule I'm trying to put into my own plan and asking them to fix it isn't really an option.