Chunks not loading in already visited areas

Since the update on the 22nd, myself and other members of a realm have noticed that multiple chunks are not loading in and creating invisible walls. This makes flying around with the elytra incredibly dangerous, such as mountains not appearing until you've already flown into them unable to move forwards or backwards just up and down. There is also an issue of chunks not loading and being trapped inside portals when you travel to and from the nether. The invisible chunks also allows you to see through the map showing people's secret passages and areas hidden below ground level. eg.mine shafts, ancient cities, nether caves etc. I play on Xboxone however, other members of the realm have the same issue and play on PS4 and PS5.