It's working fine on Youtube in Optimal mode. If you have still issue, you will have to go through self-diagnosing steps[1] to rule out all the myriad other way

It's working fine on Youtube in Optimal mode. If you have still issue, you will have to go through self-diagnosing steps[1] to rule out all the myriad other ways you suffer such issues -- most commonly another extension is interfering negatively. [1] https://github.com/uBlockOrigin/uAssets/issues/27415 https://github.com/uBlockOrigin/uAssets/issues/27415