Hi All, I recently installed 19 Cobalt IP Digital point motors on my new layout which I control using a Roco Z21 and they have been great except that I have now twice experienced issues with all 19 motors losing their addresses following shorts. Both shorts were due to derailments due to incorrectly set points. On both occasions I had to go around and reapply the addresses to each motor which although a simple process is frustrating. Has anyone else experienced this? Any advice would be grateful