I am using Thunderbird with the two following extensions: (i) Thunderbird Conversations and (ii) LookOut (fix version). Sometimes, when I receive an email containing some attachments, they are not displayed unless I open the email by selecting the option "view using the classic reader". This is quite annoying as the only way to realize that the email is supposed to include an attachment is that the sender mentions it in the message. However, that doesn't always happen (in most of the case I actually see the attachments) and I cannot figure out what makes Thunderbird show (or not) the attachments and the end of the message. Does anyone have the same issue and know a way to systematically see attachments included in emails? Thank you. Thunderbird 91.4.1 (64-bit) on MacOs Catalina 10.15.6