The return button doesn't fix it and reloading from the main menu doesn't fix it either... and I also tried switching out the "stuck" minion but the game doesn't register it as having been switched out in the "stuck" menu screen it does actually have the minion switched out but still can't use the menu.
There should be some sort of warning about those wiggling pods in the walls since they explode when dug into (in a game where digging into weird looking stuff is usually beneficial)
The fact that the second to last level gives basically no gold is annoying in that then I have to redo a previous level with almost no money in order to have any cash for the final level...