Can't create new columns
I wanted to create a custom stat and needed a new column for that. I tried duplicating the cnt_p_3bet column, but when i change the expression, the column isn't saved. I can click the "Save"-button 5 times and the new column still doesn't show up in the list. When I click on a different column, PT3 asks me if I want to save my changes, I click "Yes", but the column isn't saved.
