Hello,
We have conducted a test by sending an email to our test address and the results can be found at the following link: https://prnt.sc/X71Km57TEafe No issues were visible. It is possible that something in your email settings is blocking images from being displayed – https://support.google.com/mail/answer/145919?hl=en&co=GENIE.Platform%3DDesktop
Kind Regards, 8theme team
