Creative Cloud on IPhone won't upload vids

I've been trying to upload videos from the IPhone Xs that I use to record the videos via creative cloud app. However it has not been working. Several people responded prior to the forum change, but nothing worked (links didn't address my issue and file name and size were not the issue). The vids are anywhere from 30 sec to 4 mins long. HDR is selected in settings.

I can air drop the vids from my iphone to my computer and upload via creative cloud.

After much trail and error, I think the issue is that the creative cloud app on iphone and ipad doesn't continue to upload in the background. Also, the upload speed is very very very slow (even on the computer)n making it near impossible to leave the app open while it uploads.

Thoughts? comments? suggestions?

Ultimately the issue is I can't share vids among my team once taken bc I can't upload via creative cloud on the IPhone.

Thanks

Wendy