Fixed Peter.
Unfortunately, links are not broken by the addition of the cn as all the linked profiles will change to the new cn.
Again I have had to delete, in this case 7 profiles, and re-enter them with the correct cn.
In this case the linkage would have been the inadvertent result of not adding a cn to any of them and the software would then have assumed that they were all the same airframe.
I would recommend to anyone adding a new airframe and not having the cn, to use the reg as the cn and thus avoid this situation.
Thanks,
Malcolm.