Web Designer 17 Premium v.17.1.0.60742  DL x64 Dec 10 2020
Windows 10 Pro v.20H2 Build 19042.804

Each time I try to edit Navigation Bar Properties > Pop-up Menu Style... > Colours > Edit - when I try to 'Create' the program freezes and I have to exit by Ctrl, Alt, Delete. Therefore I can never achieve any changes I need.

Can you advise please. Thanks