As Giovanny wrote in comment #9:
"With the command in the terminal "sudo apt-get update" "sudo apt-get upgrade" "sudo apt-get dist-upgrade", I have solved!"
with new package import/updated package the problem is (sometimes) going away.
As Giovanny wrote in comment #9:
"With the command in the terminal "sudo apt-get update" "sudo apt-get upgrade" "sudo apt-get dist-upgrade", I have solved!"
with new package import/updated package the problem is (sometimes) going away.