I notice with the editor the following thing :
Open 2 files
Go to a line at the end of the first file for editing it
Switch tab to browse through the 2nd file click on any line
Go back to first file ...
The editor point at the beginning of the file , the cursor is not there anymore.
While trying to compare files together, it would be good if the editor could remember the position of the cursor in every tab.
Hope this helps