If column is both searchable and editable then search results are not rendered correctly (highlights don't work)

This is clearly related to previously fixed issue #224 I found that if column was set to editable then such error occurs.
There's also maybe related problem. If some column was declared searchable & editable but contains null value in database then if you use search application crashes with
ErrorException Undefined array key "slot" (View: _path _to project\vendor\mediconesystems\livewire-datatables\resources\views\livewire\datatables\datatable.blade.php)
Again it is related to highlights (LivewireDatatable.php:1464):

On the columns , where we have the callback the search is not working on those.
sample code:
Column::name('test') ->callback(['test'], function ($test) { return $test== 1 ? 'Test1' : 'Test2'; }) ->label('Test Type') ->searchable(), Now when searching for Test1 or Test2 the search doesn't work.
Any suggestions?