Sommer Cable Richard Kruspe RKHU-0600-RT

After purchasing 2 pcs. of these cables and excluding having used them at home, a problem arose.
The signal is or disappears periodically, as with a loose connection. On one cable I removed half a meter and reassembled the angle plug, but unfortunately it still did not work satisfactorily.
The cables have not been used very much, they have never been subjected to overload, of course the sockets on guitars, amplifiers and pedals have been checked. When using other cables, there are no problems.
Incidentally, this type of Sommer Cable is extremely comfortable to work with and the sound is really nice. Therefore, it annoyed me, of course, that I got two. "Monday cables". It might be interesting to hear about others users experiences. Please note, that without the problems mentioned above it would have been 5 stars.