Its up to 68 deaths now actually. I never had issues with spanish trains, but it seems they are having some major problems recently. If i can immediately remember the last mass casuality train accident off the top of my head then its happening too often. The last one wasnt even a year ago. 46 deaths that time. Like wtf are you doing with your train systems for it to fuck up this badly twice in one year???

https://en.wikipedia.org/wiki/2026_Adamuz_rail_disaster

Apparently bad rail welding and wrongly configured automatic rail fault detection thresholds in that case. For this new one it will take a while to know for sure i guess but it looks like human error during the signalling.