Nominet have recently completed their ‘data restructuring’ upgrades. It seems the new systems do have teething troubles with TAG holders unable to conduct LIST commands (fixed last night) and some TAG holders unable to issue successful RELEASE commands.
The new Nominet systems have tighter data controls so whereas slightly malformed queries were processed, they are now spat out with errors attached eg. where blank text preceeds a field name.
One of the more interesting error messages is the "V194 Operation blocked by Nominet process" which I am told was misread by a bleary eyed domainer at 3am to read "Operation blocked by Nominet Progress".
Hopefully the end result when all the bugs are ironed out is proper progress 
