I have a TMS Web Project where I fill a TTMSFNCCheckedListBox with items after a button is pressed. Initially the empty TTMSFNCCheckedListBox is displayed, however after I add items, the ListBox is not visible anymore. If I click into the area where it is located, the ListBox appears.
I'm using the newest TMS Web and TMS FNC UI packages. Delphi 11.1 Enterprise is used.
You can easily reproduce this by creating an fresh TMS Web project and add the default TMSFNCCheckedListBox to the project. When you run the project, the ListBox shortly appears and then disappears. When you click into the area where it is located, it reappears.