Export fails with 'Array to string conversion' exceptions.
The underlying issue is that there are a few language resource files with empty arrays. For example:
'attributes' => ,
Empty arrays are not particularly handled with the Laravel array_dot helper function which is used in the translations module. It just sets the value to an empty array, which then fails with the exception above.
Sure I can fix the problem myself just by commenting or deleting those empty arrays, but the functionality does not work out of the box.