Using the new release I've experienced problems with the source file editor.
The worst experience has been after some massive modification of a source, that involved also whole file replacements (I mean using the replace command and <Replace All> button). Trying to get rid of last modifications, as I was used with past release, I undo them up to the point I needed. Then I noticed that the source text was missing many characters, the first one of the removed words. Redoing and undoing creates more corruption.
I was not able, by undoing, to get back to a correct text. And I can't say what commands I exactly used, despite the efforts made to try to reproduce the condition.
Does anybody experienced the same problem? And if yes can reproduce it?