Yes, I too am having similar issues. I am experiencing missing views, item balloons and entire lines missing from drawing BOMs.
And it only gets worse when I run a drawing through a PDF conversion task.
sorry for writing so late, but I came across this at a customer, too.
I suspect that this can happen when File Version Upgrade is done from >1 computer. A second try with a single computer worked fine - and of course took some time...
Did you run the File Version Upgrade on a single machine or more?
We just ran into this same issue. Turns out there was a common theme... drawings with multple sheets. The solution for us was to rerun the upgrade tool using the "rebuild" option. We also chose "overwrite existing version" and ran it on 8 computers.
There was another common theme. Many of the files (not all) had this warning message in the upgrade log:
"[10/27/2012 9:12:03 PM] WARNING: While saving file 'C:\Vault\Z_Legacy\9275-000001.SLDDRW'. Reason:"
I know this fixed most of our issues... still waiting to see if all files were fixed.
SW 2012 SP5.0
EPDM 2012 SP4.0