Hi,

And you're using the latest version of Opera or Chrome?

Opera:

Version: 41.0.2353.69
Update-Stream: Stable
Betriebssystem: Windows 10 64-bit (WoW64)

Can you explain why mylittleforum.net does not have the problem then? yet your 2.3.7 and my 2.3.7 site has the problem.

Can you explain why I don't habe the problem anywhere? By telling us Only the new image is in the avatar folder on the server, you confirmed the correctness of the software. In short: No old image are available on the server, thus, the source of your problem must be outside the server/forum.

If it was a cache issue this site would do the same as ours.

No, not necessarily. The server can force the download.

Let's have a try as suggested by Auge. Create/save the first avatar as a JPG and second one as GIF or PNG. Repeat your procedure and change the image.

/Micha