Image rendering bug when viewing e-mails with lots of images

Steps to reproduce:
-Create an e-mail.
-Insert about 50MB worth of large (multi-megabyte) inline images.
-Save the e-mail.
-Open the saved e-mail file.
-Repeat the last step until one of the images does not render correctly. (See the below screenshot for an example.)

Thank you for reporting this - our developers are working on the fix so hopefully it will be available soon.