After update to kernel 4.12.14-lp150.12.79-default, .cshrc is no longer automatically executed at login or when opening a new konsole. Manual execution via 'source .cshrc works fine.
See https://forums.opensuse.org/showthread.php/538019-tcsh-not-sourcing-cshrc it seems to be fixed with some update today.
That is not actually due to the kernel. There was a bad “tcsh” update that you probably installed at the same time.
In any case, this has been fixed. There should be a newer “tcsh” update and perhaps you have already installed that and fixed the problem.