I have the same issue (live TV from SVT Play stops after ~1 s) on a Vero 4k+ and a Vero V, running OSMC (https://osmc.tv/). Both stopped working at the same time, not related to any updates at that time. Not sure if there's any relationship between OSMC and LibreELEC (I guess not?). Since both of my devices stopped working at the same time, I would assume the issue is due to some change on the SVT side.