Uploading banners problems

Hi,

This is the problem: all my banners disappeared when I updated the plug-in to the last version.

Banners were all gone, both on the page and in the image well of the plug-in. Luckily, other data was still intact — banner link, image sizes, etc.

When I uploaded the banners again, I had to refresh the browser window after doing so in order to make the banners appear — it’s as if uploading and clicking the save button doesn’t make them actually upload.

https://wordpress.org/plugins/useful-banner-manager/