What about the profile wallpapers? Why can't I upload a file larger than 2048kb? Pictures nowadays are high quality and I compressed one to 2036kb, when uploading it says "nodebb-plugin-s3-uploads-updated :: Missing credentials in config". An upload of 2048kb is very poor.
I have the same problem...
When I go on my account informations there is my profile wallpaper, but when I change to the forum, the picture is gone. Than I try to upload it again and the same error message is coming.
also had this problem but I got it 3 times