Steps to reproduce:
1) Start-up radiotray and right-click its tray icon 2) Go to "Configure radios..." 3) Select a station, then click "Remove" 4) Click the "No" button in the dialog box
The dialog box stays open, and then any subsequent clicks on the "No" or "Yes" buttons do nothing. The only way to close it is by clicking the close button at the top-right of the dialog. However, if you click on "Yes" the first time, it performs as-expected.
It seems that this is caused by only allowing the dialog box to be closed under a certain condition, which is if the user clicks on "Yes". The proposed patch is attached to this bug report.