So I've had this happen once before and can't remember what I did to fix it....
After restarting my sancs post-crash, all but one went to "ENABLED" pretty quickly. One has been stuck in "PRE_ENABLED" for about 4-5 hours now. I tried issuing a "start alias" again 90 minutes ago or so to no avail. I can't remember for the life of me how I fixed this before, but I think last time it happened it was "PRE_ENABLED" for something like 18 hours, and wouldn't fix itself...anyone remember what to do with a stuck node?
Do you have the same wallet version on both of them?