I have a UE55F6400 TV, with a CANAL UHD 4K (G9) STB, configured with universal setup.
It has worked flawlessly for years, turning the STB on and off as I turned the TV on and off. But a few days ago I noticed that turning off the TV did not turn off the STB anymore. If I don't turn it off manually (with the original remote), next time I turn on the TV, it turns off the STB, which is annoying...
I have checked that "sync with TV power" is enabled in the universal remote setup. I have also tried deleting the device and doing the configuration for my STB from scratch, but it's still the same.
Besides this, universal remote still works normally. It's only when i turn off the TV that it doesn't turn off the STB.