listBox not showing

In the past I have had a lot of trouble with nesting controls in a tab panel, but now using Windows 10 with Xojo 2020r2.1 and everything was going well. Now, I have a web dialog. In that I place a page panel. In one panel I have a list box. I change only the list box name and resize to fit, then I run the program. It shows up as only a line where the top of the list box should be. I have deleted the list box at least 10 times with the same result, except twice. On those two occasions the list box worked, but it showed up on two different panels.

I start a new project and recreate just the web dialog and it works, but still not in my project. Could I be missing something or is this a bug? I’m starting to think that list box really isn’t that important to me.

WebListbox isn’t currently functioning when embedded in a WebPagePanel. There are two feedback cases about this that you may wish to follow or add points to:

Thank you