You push “Post” and wait for the spinner… and it never posts.
You can’t push the “Post” button again because the interface has been screened off by a gray layer that blocks your clicks.
Sometimes, you can re-press the button. Here’s how.
Right-click on the page, and click “Inspect” in the menu. This will bring up the inspector/debugger.
There’s a search box near the top. Type “Post” or whatever text is on the button. It may match more than once, so try to find the one that’s the actual button.
The code might look like <button …>
Right click on that code and select “use in debugger” or something like that.
This will cause a pane to open at the bottom, and a word will be there, like “item0”.
Append “.click()” and press enter.
For example, if it’s “item0”, then you want to do this:
That sends a click event to that button. It might work. It did for me, on Ebay.