I just downloaded the mod pack using the twitch launcher and was eager to play, when i created a new world i was stuck in some blocks and I fell through a bunch more. So I flew up with creative mode and saw this at the top.

I also created multiple new worlds and this issue was the same.

https://gyazo.com/9f19c5578ebee126a8ae28c2da24fa2f

It keeps happening https://gyazo.com/787b0dcb09915eb00666b1dc652b3ee7

have you tried different worlds? ie terrain gen?

I have created about 7 worlds and the same thing keeps happening. Where i load in, and after 30 seconds a visual glitch or terrain glitch happens.

ok, but have you chose a different world gen?

I have only tried it with default terrain gen.

Sorry and also ecotones.

I have tried all the world gen but the same thing keeps happening.

got any logs? ones that include activity of this visual glitch.

please post to something like hastebin or pastebin.

It doesn't crash or make any logs so i don’t know

check the logs folder in your minecraft instance

I just solved the issue, it was because i had sodium installed. So i just deleted it. Thanks for your help anyways.