OK...this is true...
- what were the original A Records' TTL?
- were the NS Records changed, if so what were their the original TTL?
- if the NSs changed, do these reflect actual changes at the registrar???
Telling people to make A Records is not good practice...also, this is not how propagation works.
Lastly, from what I can see, (at the time of my post) there are no active NS Records for OPENWRT.ORG. at the ORG. Root. The new records should exist.