I made a popup form and put two FNC conponents : TTMSFNCColorPicker and TTMSFNCStrokeKindPicker on the form. The first time I clicked these components, it works. However, if I click them again, the dropdown content of the components does not display, i.e. the components do not work anymore. Just let you know I did not test other components and maybe some other components have the similar issue.
A different note, FNC components on the panel-hosted forms work.
For your reference, here is my test :62. FNC components on Popup From.zip (2.3 MB)
Thanks for your help in advance.