Just Remove Parry & Dexterity
It's a pretty simple solution to all of the timing bugs that never seem to be acknowledged, adjusted, tested, or fixed. Remove Parry & Dexterity so we stop expecting them to work properly. The timing is crucial but when you play this game all the time and know when a parry should trigger but it doesn't, you tend to let your block down so you can start your attack because the champ should be stunned. Except they're not, they keep attacking, and you get destroyed. Same with Dexterity but it's slightly less of an impact. It's not a chance for Parry to trigger, that's not how it's described or designed and it never has been. It's a well timed block, so you can perfect that timing (in theory).