Bug in Column editor

[Adracir]

Currently, my changes made for the columns in the table are not implementing completely.

1. I can choose which columns to show/hide. But every time I make a change I have to click the Save button, because the change will otherwise revert itself with the next click I do.
2. The custom labels are not shown, instead, the column ids as managed in the data source are displayed as column headers.
3. Same applies to the Value adjustments done when clicking on the Settings-Icon next to the column. They simply don't have any impact at all on what is shown in the table.