Differents colours in notification discover notification of updates

[wonder]

Hello.
Its possible that, my question, its a "stupid question"...sorry for this...
I view that, always, when appears discover for automatic updates, appears a notification with led/colour blue, open discover, accept the updates and run update (and when finish, disapears the discover notification for updates).

But in some times, appears this notification of discover with updates but with colour red, open, run the update for install this updates, and when finish, the colour change at blue but continue in systray, not disappears...

Thanks,

PD: Edit: I use Kubuntu 18.04

[oldgeek]

That happens to me as well. It's just a little bug they haven't fixed yet and won't hurt anything. Just ignore it, or if it really bothers you, a reboot gets rid of it.