Data Grid Sizing

I am using Toad for Oracle version 11.5.0.56 and have the Data Grids Visual option for column sizing set to “size to data”, checked "allow columns narrower than header width (min column size set to 20) and also checked “allow column wider than grid width” (max column size set to 5000).

Problem is I always have to right click the grid and select size columns to size to data - it never seems to remember the option setting.

What is going on? Am I doing something wrong or is this a Toad bug?