Hi,
Only Aries has changed the way some events display the description, not the Gedcom editor, and Ancestris has not moved your data, so the information displayed in the Gedcom editor is the information that used to be displayed in the gedcom editor.
Also, events that had both the description and the type did not change either. Only events which do not have a description property (BIRT, DEAT and a few more) and where the type was used for entering a description by Aries have now a type which is called a type and which used to be called a description before the change in Aries.
Bottom line is: your data should not be changed and has not been changed nor moved. The only thing is, if you used Aries for BIRT, DEAT, what you though was a description is a description and remains, but now it is called a TYPE because that's what it was written into inside the Gedcom file and the Gedcom editor. There is no other way to describe a birth in the Gedcom standard apart from using the TYPE field.
I hope that clarifies and sorry for the pats confusion, but again, no data is more incorrect in your file than it used to be.
Best regards,
Frederic