A little over 12 months ago (April 2024) I put up two sets of these festoon lights. They have worked perfectly, but have suddenly stopped. I have changed the batteries in the remote. Checked the plug which shows a little blue light for the receiver. As I bought two sets, I had a spare plug so tried swapping it. No luck. I have checked each bulb (as I have two spares), and when I push each of the filament bulbs slightly I can see a small glow. This stops as soon as stop the pressure.
Any ideas?