Gmail problem - a really weird one!

I just came across this very unusual problem in GMail.

I received a mail from Digit. I can see the first line of the email in the subject line (in GMail home page).
But when I click the mail, the contents do not show!

Only the "Dear Sir" can be seen!!

Clicking on "show hidden text" doesn't solve the issue.

Any solution, anyone?

A similar incident had happened before - I hadn't paid much attention to that one, though.

There's another similarity between the 2 incidents, by the way. Both mails are from Digit!

Any explanation? Anyone faced a similar issue?

Mods, please help.