On another PC running Mate 20.04, the network animation shows a WIFI animation instead of an Ethernet animation. Personally I do not really care for this, but in the progress of making UM better it should be fixed imo.
How to reproduce:
You will see the animation is for WIFI, not Ethernet.
Now I would have uploaded an recording I made (70kb)
How do I attach files like e.g. a mkv or a zip ?
Hi back 
With theme are you using ? Show a screenshot
I strongly think its related to your theme, but cannot try and confirm as i have only wireless card on my laptop.
Ambiant-MATE-Dark on Pantheon
I'll upload the .mkv : https://ufile.io/0phg4r2m
Can you give a try with a other theme ?
Hi Guy,
You can follow this commands to reinstall network and indicators:
sudo apt-get install --reinstall network-manager network-manager-gnome indicator-applet indicator-network
Reboot and try if works. If not:
sudo /etc/init.d/network-manager stop
sudo rm /var/lib/NetworkManager/NetworkManager.state
sudo /etc/init.d/network-manager start
Cheers
Theme's with this issue:
Ambiant-MATE
Ambiant-MATE-Dark
Radiant-MATE
the others are fine.
Do somebody saw this issue before 20.04 ? Maybe we need to open a bug report.
Personally, this is not enough for my eyes to spot it and be disturbed with, but can be a nice improvement
@Guy, you can report it as bug, to get it fixed in next releases
Want to but cant 
, github requires all kinds of obstacles to register when using an exit-node if you get my drift 
You can report a bug for ubuntu mate here : https://bugs.launchpad.net/ubuntu-mate
You need only the ubuntu account
Issue reported: https://bugs.launchpad.net/ubuntu-mate/+bug/1884223
Thanks @Guy, thanks to you, it will be solved