Last seen date is 1 Month old but backups were made anyway

I just returned from my vacation and checked urbackup, and first was shocked, when I saw that the “last seen Date” was for most clients about 1 Month ago. Only then I realized that fortunately the backups were made anyway.
The last seen dates are not the same for all clients. See screenshot.
Is there any way to update the last seen date? Is that a feature or a bug?

I think I fixed this with 2.1.x. You have some long uptimes!

ok thanks. I won’t update to 2.1.x on our productive systems yet. But good to know it is fixed :-).