the game didn't load the assets, and you fell through the map. restart from last checkpoint, it happened to me about 7 times.
I have a gamiing pc, lol. It's not my pc's fault, and the person I replied to had the issue as well, and that's what the problem is - the assets didnt load - i can guarantee they got to the part where you're going after the first shard. the pit where you get the light source effect, 9 times out of 10, it never loads the assets. not my pc fault, lol.
I linked a Devil May Cry 5 video I recorded on my pc and linked it on steam to show you my pc isn't weak xD