Text export then import fails. Exported text contains invalid characters (tab character).
Dump > Output:Open > Format:SQL > Export > Copy output
SQL Command > Paste > Execute
Replace all the tabs for spaces and the import will succeed.
I couldn't reproduce. Import supports Tab. Is there some error message?
Curiously I cannot reproduce now. Due to other issues with IE Edge 11.0.9600.17126, a forced browser reset was made post bug-report which may have corrected the issue.
I will monitor and report should this re-occur.