This is because you cannot add multiple hyper links into an image, you can only have an image linked to one URL link.
You can get around this problem by:
1. Building the flyer inside the html text editor rather than creating it as an image which is limiting. This way you can insert hyperlinks into the flyer.
If you do not know how to create the flyer in this way please contact our Support Helpdesk and we can create the flyer from your image.
We charge to do this so would be able to give you a quotation on receipt of the images.
2. Insert the flyer but do not mention click here in any of the flyer image. Create the call to action hyperlinks in the text surrounding the flyer so it will work.
Please click here to read how to set up hyper links in an email campaign.