I thought you couldn't activate the sculk catalyst by killing the ender dragon by hand and only by commands , but i tested it and it does so nevermind.
Sorry for wasting your time
Some block like bells, pistons and banners were acting very weird with their rendering
I think this bug is a problem with block with animations ( moving banner, bell ring and piston push ) and 3d items ( shield and resource packs )
I thought you couldn't activate the sculk catalyst by killing the ender dragon by hand and only by commands , but i tested it and it does so nevermind.
Sorry for wasting your time