Thank you for your message.
If I am understanding the description of the issue you are reporting correctly - I believe it is working working as expected somewhat.
When you are setting the fill of an object to NONE using the Formatting Bar - I am assuming you are using the square in the color picker with the red line through it. If you are not, let me know what you are doing to set the object fill to NONE.
When you change the fill of an object (for example, a rectangle) to NONE, you are setting the opacity to 0%. Then, when you switch to the Inspector and attempt to apply a fill, FileMaker Pro doesn't assume you automatically want to remove the opacity setting when you choose a new fill - although you could make the argument that it should. So, in your case, you would also need to adjust the opacity to something other than 0% for the fill to display as expected.
I understand, what is confusing, is why the color works if you choose it again from the Formatting Bar. In this case, since there is a implicit "transparency" color in the color picker, the other color fills are implicitly not transparent. So that is why your workaround works. And choosing NONE from the Inspector and then back to a fill also works since it removes the transparency attribute from that object.
In any event, I will submit this issue to our Development team for future consideration as it could be a little easier to use and understand.
You got it right, I was using the square in the color picker with the red line through it. I understand that the opacity changed to 0% and, yes, I agree that this is somehow an expected behavior (from FileMaker developer view).
But I met already two users running into this "problem". They instisted that this is a bug. In their words: "I changed the color to 'no color' (NONE). I did not change the opacity."
I think, the confusion is coming from the different behavior of the fill color button in the Inspector. Every other color button (three color buttons in the toolbar for text color, line color and fill color, and three color buttons in the Inspector for line color, baseline color and tet color) will open the FileMaker color picker palette. In each of them you can select "Other Color…" and it will open the floating window "Colors" where you can select any color and change the opacity. It is only the awkward large color button for fill color that will go straight to the floating window "Colors".
Also, there is no problem when the do similar changes with the line color (selecting NONE in the toolbar, then selecting a color in the Inspector). At least this is inconcistent program behavior.
The user makes color picker experiences in six out of seven places where he can switch between NONE and any color from the color palette. Then he uses the fill color button in the Inspector and he does not understand the worldFileMaker anymore. It would be easy to fix it by changing the default behavior of the fill color button to open the FileMaker color picker palette.
And in past versions, changing the fill pattern to transparent, then selecting the color, automatically updated the fill pattern back to "solid" for you without needing to make two selections to get this change. Thus, experienced users get suprised by the behavior change...