Report Not Rendering

[tjd]

For some time now, I've been having problems with PowerBI crashing and then, after restarting it, the report pages no longer load.  The data files, data model, and relationships are all there, but no report pages - it's on a blank Page 1.  Now I've noticed something unusual about the pbix file that is "trashed".  I can make a copy of an exisitng pbix and it gets today's date/time as the date/time created and also modified.  If PowerBI "crashes and trashes" the file, it retains today's date/time for date modified, but the creation date/time goes all the way back to the original file creation date.  When I try to reload it, the file looks like it did just after importing the data but before creating any report pages (although any data updates since the creation date are retained).  This tells me that somehow, the report thinks its back at the beginning.  My question is two-fold:

1. Any reason why this is happening?

2. Any way to get the report pages back working again?

Thanks in advance.

[nikil]

This is interesting. I have not come across this issue before. Do you see any error messages at all ?

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[tjd]

Yes, I will occassionally get an "Out of Memory" message or some other failure message.  On other occassions, I just get a Windows problem message and "application has to close" with a Debug and Close box.