Error when import backup file

I created a Dashboard with 6 pages with lot of widgets. I exported the settings to a json file. A couple of days later I was doing some settings in Remote admin and suddenly the names of all widgets were rearranged.
So I tried to perform a backup restore from the json file, but the import of the settings was not successful. Whichever of the previously created backups I choose always ends up with an error “unsupported or error in json file”.

@sucharz There is a bug with import that will be fixed in the next release, which is probably the same issue.

The fix will be available in 34.3 release.