Vision Popup Not Updating But Other Windows Do Update

I have a project in Ignition v8.1.41 that I make changes to and save. The Project is configured to Notify in the Vision/General/Update Mode setting. When I save the project, other windows update when the user selects the update banner, but not this popup.

I changed the window's Cache Policy from Auto to Never in hopes this might help. It didn't.

I've never heard of this happening. You're saying that you make a change to the popup in the designer and save the project, when the client updates, the changes do not show up in the popup?

Are you sure the path to the popup in the client is the same as the one being edited? In other words, is there no chance there is a duplicate popup window somewhere in the project that is being opened by the client instead of the one that is being edited?