As i describe earlier in my posts do not use kc…
does not work…
Instead find and use api services from kf.
As in my example find your form in httpp://kf.dock.xxx:8585/assets/
And after that use the relative link for your submissions
http://kf.dock.xxx:8585/assets/adRrStfMF7MjAsGUhd8ne2/submissions/
Of course you have give permissions to users first…
Best regards
Panos