Clouds appearing through

So when the 20w22a update launched on my minecraft, all appearded normal. Then I created a new world to test out the new features. When the terrain finished loading the clouds apeared a little weird but nothing that bad. Then I builded a nether portal the i notised that the clouds where apearing trough the blocs i did some further testing all the same. then I also saw that the items appeird to clearly trought the portal. Sorry if there are some gramatical error its not my 1st language