'Difficulty' sees drug case delay.
Claims by more than 150 families were expected to be formally discontinued at a hearing before a judge at the High Court in London.
But Mr Justice Eady was told that a "difficulty" had arisen which meant that the proceedings would have to be adjourned.
Lawyers representing the families had earlier announced they had been forced to abandon the trial of the action following the withdrawal of legal aid.
The Legal Services Commission said in November it was no longer funding an action against the makers of sodium valproate, a drug used to prevent epileptic seizures.