For the love of god, hotfix the rune interface during champion selection.
-Editing the runes doesn't edit the current rune page but the first in the list. -Rune pages sometimes change name during the editing. -The game won't lock the last rune page opened/editied but the first you opened/edited if you don't manually pick it under the champion portraits. -Saving runes doesn't always save them. -Overall laggier than usual since the launch of Patch 8.10.
I don't know how you managed to break it down this much in a single patch but this is seriously infuriating. And while we're at it, fix the secondary rune tree and its horrible rune exchange system aswell.