I deactivated all the listings in my shop an hour or so ago because I didn't want anyone to buy anything while I was adjusting parts of my shop (unrelated to this issue.)
Once I finished, I selected all of the listings I'd deactivated to activate them again (on my computer browser, not the app), except now Etsy gave me a dialogue box saying that I had to pay to renew two of the listings. I unselected them all and tried again. Same issue. None of the listings had expired in the last hour, I went through and checked all of their dates, but I was still being told I'd have to pay to renew two of them.
Instead I went through and renewed every listing one at a time—and boom, suddenly none of the listings needed to be renewed and they all were reactivated successfully.
I don't know if this is where I should report this kind of bug, but here it is in case someone else realizes they're paying to renew listings that haven't expired.