When trying to upload a thumbnail there is constant error “Upload Image failed” "Thumbnail should be the following formats: .*jpeg, *.png, *.bmp and not exceed 3MB in size. I tried multiple thumbnails that are all Under 1.9 MB and all PNG and they all do not work, I try with many previous thumbnails that I uploaded before no problem but now they do not work. This was a bug that I previously reported and it came back and is broken again.
I too am having the same problem. For over a week now. I just haven’t been able to post until now.
If I move the images around and save, they go back to their order after a page refresh.
If I try to delete, nothing happens.
If I try to upload new images, I always get the error “Upload image failed…”
Image is 1.6MB. I was able to upload it to events so I know if passes the safety check.
I ended up deleting my video and it freed everything up to delete old and add new thumbnails. It happened again this morning, but I deleted one of my older thumbnails and I was able to reload a new one again. Feels like it could be a metadata caching issue or something like that.