Yes, I have some CTDs with version 1.14.6.0, too, and none with version 1.14.5.0. Now I do the same as two times before: lower the overclock CPU from 4.1 GHz to 4 GHz. I started at 4.3 GHz. The last two times it helped.
Update: This time, reducing overclock did not help. I investigate my latest “two steps forward, one step backward”. At the moment I run at 4.2 GHz to force the bug.