I have now created a topic at the Cloudflare community, let see if I get any respond to it
https://community.cloudflare.com/t/cloudflare-human-verification-corrupts-uploading-files/617840

Also started a support ticket at my host
Actually It took three attemts to start the ticket as they seemed to have same issue as I have.
I submitted the ticket and the verification notice came and the verificating succes came and then back to the empty
form... I didn't believe my eyers
second attempt same result
third attempt was a success so now my ticket is up there.

Anyway I'm all ears for ideas, If Gizmo or Isaac or Ruben would be interested you are welcome to login and test my forum.

It's frustrating 😬

Morgan Johansson
BritBike Forum
https://www.britbike.com/forums/ubbthreads.php