Breaking blocks in creative issue

Hello, I noticed that since the last update (1.21) when I try to break a block in creative mode...does not split, and seems to regenerate instantly. This problem occurs only in the creative mode, while in survival the game works correctly. Another thing I noticed is that if I hold down the attack button the blocks break. I tried to reset the app and reinstall it, but the bug always recurs. I also attach a video showing what I’m saying.

Thank you!