Hi, is there any official answer to this question? https://developer.apple.com/forums/thread/651399 There is like a hundred people with the same issue and I can't find any response from Apple anywhere. I tried all the others tutorials on the internet but it didn't help. If there is no solution to that I'll have to go back to Catalina because there is no point to stick with the system that made my computer much slower. Btw. it's not like I don't know how to handle my computer, I'm dev myself and I keep it very tidy. And this hardware should be able to run smoothly (and it was until last update!) without any problems! MacBook Pro (Retina, 15-inch, Mid 2015) 2,2 GHz Quad-core Intel Core i7 16 GB 1600 MHz DDR3 Intel Iris Pro 1536 MB