Thank you for your post!
Please provide some additional information:
-What exact Operating System are you on? (Windows 7 Pro, Windows 10 Home, etc)
-What exact version of FileMaker are you running? (ex. FileMaker Pro 16.0.2)
-How are you creating the New Window? (via script, via Menu: Window > New Window, etc)
-Does this issue occur in a New File?
-Does this issue occur on other machines?
I look forward to your response!
I noticed that customized menu items of databases created prior to FileMaker 16 are greyed out when the 'Based on existing command' checkbox is selected while an 'Override default behaviors' box is also selected. Mac OS Sierra10.12.6 & Windows 10 / FileMaker Pro Advanced 184.108.40.206
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