When I die on a local server, the chunks reload even if I die on my spawnpoint. This also causes chunk loading issues and blocks disappear. I also get a huge lag-spike (but my FPS doesn't drop). After 10-15 seconds the conditions get normal again and I can press F3+A and all chunk loading issues are fixed. This problem appears when I use a local server as well as the 'open to LAN' function.