High-speed practice journey resumed in northern France on Tuesday after an overhead cable fault pressured the cancellation of a number of trains a day earlier, together with Eurostar companies. Repairs have been accomplished in a single day, although some delays and cancellations persevered Tuesday on the Paris-London route.
https://www.france24.com/en/europe/20250805-eurostar-still-faces-delays-as-high-speed-train-travel-resumes-in-northern-france