I am playing on CosmicSky and it seems that giant chests always turn into two regular sized ones that both open. Doors are often split in half horizontally and I can't walk through them. Glass panes, fences, and stone walls don't connect and I often catch on them and can't walk through. I am playing on 13.13.2 but I believe this was a problem on 1.14 too. How can I fix this?
I added an example with the giant chests with two screenshots.