No more attachments

I usually receive 3 or 4 zip attachments each day but since the recent AVAST update all I see is the file in RAW format - no zip file in the attachment section of Pegasus mail. (ZAPlus in use but not altered in any way)

Would this have anything to do with AVAST please and how would I rectify it.

Shep
PS I also use Mailwasher pro
I just checked and I can’t see a text file in the attachment section either

Sorted! After trying everything with PMail I installed Mozilla Thunderbird and everything is fine now.