Panels closing after a selection

[Mich]

I have a panel with 2 selectbox. Users need to select an entry in both before submitting to the server. However when they select one the panel goes away. They then have to click again the button which triggers the panel open. It's not really friendly. Any suggestion? Thanks

[Mich]

I found a work around. When a value is selected (value change) just re-open the panel.

[Maryna Brodina]

Hello!

Most likely there are a lot of elements in select and while selecting there is a popup to choose option. This popup closes panel. There are two ways:
1) On select Value change event add Open panel action
2) Tick Native Menu in Select settings.