Is anyone having trouble developing for Pixel Devices? We are seeing that anything that formats correctly for pixel is breaking on other mobile devices and Litmus doesn't give us the option to look at Pixel devices.
Pixel, by default, uses the Gmail app, so the usual precautions about developing for Gmail app apply--if the person is using IMAP you can't use media queries and there are some strict requirements about how style tags and structure is set up.
It's hard to tell what exactly is causing the issue without code, though. :/