I am just uploading a single image that is under the appropriate size and the number allowed by free.
can you send the link to your PollUnit to email@example.com?
Then we can have a look.
Hi Philipp, I am also having this issue and have sent an email to this address. Can you please help?
Can you maybe send one of the failing submissions to firstname.lastname@example.org?
I could not see a problem when submitting an image.