Can confirm. Even with a 0ms connection (running the server off the same pc I'm playing on) I will fall through the world for at least 1.6 seconds after traveling dimensions or joining the server. Players with higher ping on the server experience it for longer.
This oddly specific bug was actually fixed in the latest forge install for 1.14.4, even with no mods. If you're willing to give up optifine for it then go ahead.
cintlex
Can confirm. Even with a 0ms connection (running the server off the same pc I'm playing on) I will fall through the world for at least 1.6 seconds after traveling dimensions or joining the server. Players with higher ping on the server experience it for longer.