Hi there. Can you please do a quick check in Host, Module Definitions if you have Dynamic Forms 3.3.61? If not, please access it in your Snowcovered account in Patches and Hotfixes (or in MyDownloads if you own the Collection 3.0).
If the problem continues with this patch, can you please check these:
1. Is the attachment not getting saved when you hit submit? Or is the email coming through with the attachment but gets an error when you click on it?
2. What error are you getting?
3. Is the file uploaded in Admin, File Manager?
4. Is the file set for visible to all users?
Thanks!
Candace