K3B in F25 blocks after burning a CD

[Joerg Lechner]

Hi,
I like to use K3B instead of Brasero. But I recognized that after successful burning of a CD, the CD is successfully ejected, but afterwards my system is blocked, I cannot shut down K3B, have to restart the system. Where is to put the question? KDE oe Fedora? My system is always updated to the newest SW.
Kind regards