Default User Avatars display too BIG in NTSKay 6.1.5

Hello support

This is another problem with NTSKay 6.1.5 using Kunena 6.1.2
Default User Avatars are displaying too BIG, compared to Custom User Avatars.
Here is  TWO links to my hidden TEST site:

The first link is for the Home Index page - it shows the difference between Custom and Default Avatar sizes.
If you scroll down, my last sub-forum (Electronics & Equipment Forum), has the Default Avatar displaying even BIGGER, which makes no sense to me?
www.moviestudiozen.com/msztest1/forum/index

 

The second link is from the Recent Topics page - Default User Avatars are even BIGGER at this location !
www.moviestudiozen.com/msztest1/forum/recent

 

All links are too my hidden TEST site.

Regards
Derek