Attached test case that shows recent issue.

Steps:

• Load welcomeICEfaces.jsf
• Click on the Open Button, modal panelPopup is shown that includes an ace:fileEntry, Upload button, and two Cancel buttons.
• Clicking on the "ICE - Cancel" button closes the popup and the popup can be reoponed.
• Clicking on the "H - Cancel" button closed the popup but it can't be reopened.
• Looking at the source of the Open button, its tabindex is set to -1 even though the modal layer is gone.

The recent issue is caused by the use of ace:fileEntry, this component disables the form submit capturing and it does its own form submit. When the form submit does not go through jsf.ajax.request function the ice.onElementUpdate callbacks are not invoked, causing the onclick, onkeypress, onleyup and onkeydown callbacks that block the interaction with elements underneath the modal overlay to not be cleared when the modal popup is closed. This is the reason why the "Open" button does not respond, the click events are blocked by the overlay iframe (which is still present but hidden).

Reverting the changes for PanelPopupRenderer to register the iframe cleanup code with ice.onElementRemove is not possible because ice.onElementRemove callbacks are invoked after the updates are applied, too late for the callback code to cleanup the memory leak inducing callbacks.

Changing the file entry renderer to do its own form submit only when the "Upload" button is clicked is not possible because the button is rendered by a plain h:commandButton component.

The simplest and quite correct workaround is to add the f:ajax or ace:ajax tag to the "Cancel" h:commandButton. This way the ICEfaces form submit is executed and ice.onElementUpdate callbacks are invoked. Also when the "Cancel" button is clicked the file upload will not proceed, this is the correct part since you don't want to upload the file but to cancel instead.