When finished working on a column in table view screen jumps back to first column

[CPAUL1]

When adding extra columns or adding formatting to data in Power BI desktop it always jumps back on the screen to the first column but focus stays on the column you were working on - very annoying when trying to work on lots of new columns to the far right of your table

[mike20]

When Adding Custom Column on Get txt Data from folder, breaking down concatenated text with Item, Store and Entry number, for example, PBI resolves the M formula on first column. Then when adding second the result on the first shows "Table", same thing with third then one show results and two 'Table', with forth repeating one of the 'Table' ones then tow show results and two 'Table'. No work around found. Apply changes or Apply and Close leave the dumb 'Table' columns. Looks like an obvious bug