Sample text file to reproduce the bug. Paste the text below in TextEdit on Big Sur. Scroll down a bit, preferably below the first page fold and try deleting a sentence by first selecting it and then hitting [Delete]; the scroll bar will go to the top of the text file. Buy Milk Walk The Dog Refuel The Car Buy Groceries Order iPhone 12 Update MacBook Pro to Big Sur Check MacBook Air Battery Pay Mobile Bill Pay Netflix Upgrade Apple Music Plan Add Jonathan to Apple Music Family Plan Call Martha Buy Milk Walk The Dog Refuel The Car Buy Groceries Order iPhone 12 Update MacBook Pro to Big Sur Check MacBook Air Battery Pay Mobile Bill Pay Netflix Upgrade Apple Music Plan Add Jonathan to Apple Music Family Plan Call Martha Buy Milk Walk The Dog Refuel The Car Buy Groceries Order iPhone 12 Update MacBook Pro to Big Sur Check MacBook Air Battery Pay Mobile Bill Pay Netflix Upgrade Apple Music Plan Add Jonathan to Apple Music Family Plan Call Martha Buy Milk Walk The Dog Refuel The Car Buy Groceries Order iPhone 12 Update MacBook Pro to Big Sur Check MacBook Air Battery Pay Mobile Bill Pay Netflix Upgrade Apple Music Plan Add Jonathan to Apple Music Family Plan Call Martha Buy Milk Walk The Dog Refuel The Car Buy Groceries Order iPhone 12 Update MacBook Pro to Big Sur Check MacBook Air Battery Pay Mobile Bill Pay Netflix Upgrade Apple Music Plan Add Jonathan to Apple Music Family Plan Call Martha Thanks, Anish