Disclaimer: I couldn't reproduce it on the demo page - so just looking for a hint on what could be causing this.

When:

• canvas renderer is active
• minContrastRatio is enabled
• search match highlighting is enabled
• search match bg/fg don't have enough contrast
• there's enough content to scroll

wrong cells are affected by contrast adjustment, namely, the same cells remain "adjusted" while content is scrolling by

It's easier demonstrated than explained: