Hello @beckyriley ,
There is a known issue where the Android Yahoo app isn't cooperating with our email coding. Our engineers are working with them to figure out what's happening from their end, so I've gotten your case and information passed to them. If and when they have an update, they'll make sure to reach out.
With that said, the best workaround at the moment is going to be including a View As Webpage link at the top of the email, maybe with some verbiage about mitigating display issues.
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