Invalid shares from one card?

Heyo,

Switched my rig over to KawPow this morning, my OC settings seem great, except for one of my 3070's dumping invalid shares after about an hour mining. This didn't happen at all when mining Eth, though core clock is -300 when mining eth, not +1100. Still odd its only one card though.

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Any ideas? This is using t-rex on HiveOS.

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https://preview.redd.it/7k82ukh743671.png?width=2472&format=png&auto=webp&s=502d3458a776f1186907983217c7cd7b85d9a3dd