Linux Mint 18.1
Linux intel 4.4.0-72-generic #93-Ubuntu SMP Fri Mar 31 14:07:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Code::Blocks 16.01, rev. 10760
SDK version 1.29.0
Sometimes, I can see that combinations Ctrl-C and Ctrl-V do not work!
They can work, but later they cannot work, later they can again work.
Turning off the option "Enable scrolling with mousewheel" does not help.
Why does it happen?
Please, help me.