Turns out there’s a bug in GSE, where after you export a couple of sequences the export window fails and doesn’t work again until you /reload.
This happened when I was trying to export the below sequences for other GSE users.
After exporting a couple, right clicks on the sequence name are no longer always registered. And when they are exporting will sometimes show a blank export window (no text, no text box), or a really small export window, or no export window at all.
I’ve also found that you often cannot widen the left pane until you have moved the sequence editor window.