In the settting : "Allowed file types, (ie png, pdf, zip). Leave empty to allow all."
But whatever I input in the box:

• png, jpg, pdf
• .png, .jpg, .pdf
• png
• .png
• png jpg pdf
• .....

It always response : wrong file type!!!!

So is there anyone know how to do it?

Yes, I got the same problem, any solution?