I had this once on Leap 42.x series. it would run constantly and never stop. And almost 100% cpu. The tracker-miner logs showed 2 files it was tripping up on. So check its logging. Other than deleting my troubled data I had to use tracker commands and stop or restart the miner to get cpu to normal. I don’t know if it was a bug, a few files with some sort of virus, or glitch. But one file i assume was a problem file, I had ripped my Little Britain collection. One chapter in menu has a “Do you want to break your DVD player” when you click it and say Yes, it would shutdown the player and no buttons worked not even the power button. Had to unplug from wall to reset it. Nice Prank from them, however whatever binary info was in that DVD fike was causing trouble in tracker miner.