Dropdown missing items

Hi

I recently released a new plugin. One of my users are having a bug I can't figure out. Hoping someone here might have some inputs.

My plugin have multiple dropdown components. I create them like this:

pal.add("dropDownList", [10, 10, 130, 30], ["item1","item2","item3","item4","item5","item6"]);

(pal=the panel)

One user is only seeing the two top items in the dropdown. Have anybody experienced anything like that? I can't recreate the error, and it seems to work for everybody else. What could cause this?

Thanks,

Jakob Wagner