Zoho Mail Mobile - attachments

Zoho Mail Mobile - attachments

Hi, I'm having a couple of issues with attachments on Zoho Mail Mobile on iPad and iPhone.

1) When I try to add attachments to Zoho Docs, I get a message "Uploaded Successfully" but these are not appearing in Zoho Docs anywhere.

2) I can't open PDF attachments in Zoho Mail Mobile.  I just get a blank greyed out screen and nothing opens.
Other attachments seem to open fine, the problem seems to be just with PDF files.

Both these things work fine on the Full Zoho Mail site, just not on Mobile.

Thanks
Chris